I’m examining an old DualShock 3 controller, searching for the reason these held up so much better than the DualShock 4 or DualSense controllers. And I think...
It looks like Sony had higher quality joysticks in PS3 controllers than they do in PS4 and PS5.
For the PS4 controller I followed this guide to fix the drift I got. Had to take apart joystick and clean the disc looking things.