Working Around De Quervain Syndrome

Been dragging this issue for the last 2-3 months, started as wrist pain due to wrist bending, then moved to the thumb and developed into De Quervain. This is in the left hand.
I think it’s mild-ish, I’ve read horror stories of people unable to move the hands and such, while I get pain only in some movements and overall I managed to workout decently by clenching my buttcheeks and paying attention to bar grip. It hasn’t aggravated but I’d obviously want it to go away - fun fact is, it’s more annoying in everyday tasks that I do mindlessly like moving stuff around and wiping my own ass (true story).
Most of it comes from bending the wrist backwards (regardless if open palm or closed fist) and by pushing/applying pressure towards the inside of the hand, i.e. when holding a generic square box and gripping at it with open palms.

The doctor has obviously suggested to cease all workouts and so on, but I’d rather not to - obviously. It will take a week for x-ray at the wrist and probably a few weeks just to meet the orthopedic specialist, so I wanted to workout in the meanwhile (and eventually during rehab) without aggravating the condition, so in a way that doesn’t bother my left thumb.
This is the plan I came up with and all the possible infos that might be useful:

-my gym doesn’t have any exotic equipment, no trap bars, safety bars, kettlebells or else. Just basic straight barbells and dumbbells;
-I’m coming out of 5/3/1 BBB, second Leader cycle, I’d want to keep training in the same fashion (that is, 5/3/1), just scaling stuff back to 5’s Pro + 5x5 FSL while upping the assistance work so I can keep general fitness in check;
-deads and pulls: these are fine, I haven’t noticed pain or grip issues. I’ve read De Quervain should affect grip strength to some degree but last week I did a set of 30 DB rows on each side and haven’t noticed any difference. So deads, chins/pullups, rows, RDLs, shrugs, face pulls and such are fine;
-squats and legs: this is a bit more of an issue, I’ve always front squatted as main squat and the front rack position is exactly the kind of thing that hurts a lot. Straps wouldnpt help here since I’d still need to flex the wrists back. Back squats with a thumbless grip are somewhat doable but I can still feel discomfort and sometimes pain in the thumb/wrist area. I’d opt for front squats with a crossed arms grip, only option that comes to mind and doesn’t require to bend/flex the wrists. For assistance, I’d opt for split squats and belt squats;
-presses and push: this is the main problem. Bench seems to aggravate most the issue, I’m fine dropping it since I was pushing the press anyway. Goes for itself - I don’t want to drop the press. Dumb as I am, I didn’t think in these weeks to try it with a thumbless grip to see if it was more comfortable, I’ll have to try this week. Overall press is more manageable than the bench, sets of 10 during BBB sometimes would get fairly hard if I happened to lose the wrists a bit midway through a set. Hope is that thumbless grip + 5x5FSL is doable. Bright side: I can do dips just fine, so I’d crank out a ton of them. Dumbbell stuff like DB press and bench seem to be worse than the barbell counterpart, overall I’d leave it out;
-core: all fine here, I almost only do leg raises and sometimes back raises;
-arms: reverse curls seem to put my hand into the best position to avoid pain, generic BB curls should be fine too with a thumbless grip on the bar and maybe some padding on it;
-gonna put a wrist brace at night starting from today;
-gonna use chalk almost always, much easier to control the wrists with it. Also, thumbless grip (hands as hooks) is going to be the go-to grip for everything that makes sense, just to make sure;

with all of this in mind, the plan I came up with is the following. It’s the standard 4 days a week routine, the one I’m most used to. TMs would all be set at 85%-ish or less. Unsure about progression, I’ll have to see the first weeks and assess from there, I’m fine repeating cycles with the same weights if needed. The goal here is to maintain strength and generic fitness level for the couple weeks it will require (I still don’t know how many) before I can get back training with no issues. Coming out of a high-volume block, I might have an extra push by reducing volume in the main lifts.
The one below would be the Leader part of the program. I’m unsure about the Anchor, I can push deadlift PR sets, but pushing reps in the press or front squats with crossed arms sounds like a crappy idea. I’d probably stick to 5’s Pro + 5x5FSL on those, reducing the assistance work. 5’s Pro + Jokers (done with moderation) could be an option, handling heavy-ish weights for 1-3 reps seems easier on the wrist due to technique being a bit smoother than high-reps sets.

Day 1 - deadlift
Deadlift 5’s Pro + 5x5FSL superset with Leg Raises (50)

Giant set
Split Squats 5x10 (per side)
Curls 10x10
Lateral Raises 5x10

Day 2 - press
Press 5’s Pro + 5x5FSL superset with Chins (50)

Giant set
Dips 10x8-10
Chins 10x5
Face Pulls 8-10x10-15

Day 3 - Front Squat
Front Squat 5’s Pro + 5x5FSL superset with Reverse Curls (50)

Giant set
Belt Squat 10x8-10
Leg Raises 10x5
Rear Raises 5x10, then Lateral Raises 5x10

Day 4 - Press
Work up to TMx1 + 5x5FSL superset with Face Pulls (100)

Dips 100 reps superset Rows 100 reps
RDLs with shrugs 50 reps

Whenever something is wrong with my hands, wrists or forearms I use the Wrist Roller.

Basically, you are using your thumb and wrist together in a bunch of positions and then moving. So you get blood flow to heal and practice moving your wrist/thumb properly. Rehab and Physical Therapy. Then after thar your wrists and hands get stronger.

Can you explain how it works? Is it something I can do with improvised equipmemt in the gym?

EDIT: maybe i got it, i could put the smith machine bar at shoulder level, place the bar pad on it, tie one end of a rope to the pad and weight to the other end of the rope. Then I’d roll the shoulder pad to drag upwards the weighted rope, and roll it to the other side to let the rope drop back, correct?

Update: after this deload week trying a few things I’ve discovered that I can do back squats just fine with a thumbless grip and that I can press behind the neck (wide grip) pain free