I'll just remind you of advice you've previously gotten:
"People deal with injuries all the time and do a very good job of working around them and finding a way. Most of us who have been doing this for a long time have had to deal with this a dozen or more times. Just find a way."
Squats are great. Lunges are great. Leg press is great. Smith squats, safety bar squats, cross-armed front squats, step-ups, leg curls, calf raises, leg extensions, all great. When Ben Bruno was recovering from knee surgery, he went crazy attacking pull-ups and become a pull-up machine because his leg was out of action. If your upper body work really is severely compromised, you'd have almost no excuse not to become a squatting monster.
But I can also think of a handful (no pun intended) of upper body exercises that don't involve putting a weight in the hands like the pec-deck, reverse pec-deck, and Thib pulldown to give the upper body more-than-nothing.
Did you ever get a specific diagnosis other than "some tendon issue"?
What are your exact limitations/restrictions? Can't close your hand to grasp a weight with full strength? Can't have stress downwards on the hand/wrist as in pressing?