I have this issue too on my PowerA wired controller.
From what I can tell, the PowerA uses similar sticks most others (just perhaps an even cheaper brand).
This article explains the issue and talks about some solutions:
iFixit: Here’s Why PS5 Joysticks Drift (and Why They’ll Only Get Worse)
I found these two videos as well:
PowerA Nintendo Switch Controller drift issues fix! – on mine I already tried this, and it seems to have done something, but not fixed it, it does drift differently now XD
PowerA Switch Controller Drifting - DEEP CLEAN – I will attempt this one later, failing that, I guess it’s (de)soldering time and buying a replacement part