why are you doing chest and back movements 4 days a week? I see you doing 200-300 reps of "chest movements" and 200-300 reps of "back movements" each week on top of your OHP and BENCH main work, and adding "fluff stuff" on overhead press day - which tells me you don't need it, otherwise it wouldn't be called "fluff." On top of all that, you're doing additional "main" exercises each workout using 3s week numbers - where did you get this idea from? Your program doesn't look like 5/3/1 at all.
Now, let's assume you're training only 2 days a week with your above template - which would make a bit more sense, however, your volume looks like a bodybuilder template, and you're just throwing in 5/3/1 for strength gains, with no 5/3/1 included anywhere in your program.
I think if you use your template, but train only 2 days a week and cut out the chest and back movements on Squat and Dead day, you're closer to some reasonable volume - but I'd also lower the overall volume on bench and OHP days as well.
I copied/pasted your template below and made some changes:
DEADLIFT - 5/3/1 + joker sets
Squat - FSL 5x5
Upper Back movement 50 reps (shrugs, band pull aparts, rear delts)
1 leg hamstring movement - 50 reps
OHP - 5/3/1 + Joker Sets
Bench - FSL 5x5
Chins 50 reps
Chest movement 50 reps.
SQUAT - 5/3/1 + FSL AMRAP
Stiff Leg or Romanian Deadlift or squat variation (simple strength template)
1 leg quad work 50 reps
Back extensions 50 reps
BENCH - 5/3/1 + Joker sets (you should be doing paused reps on all your leading sets up to your PR and joker sets)
OHP - FSL 5x5
Dumbbell Rows 50-100 reps
Shoulders/Upper Back 50-100 reps