I used mine just a few hours ago while playing Brotato. I’m usually not a controller guy and try to stick to mouse and keyboard but in cases where controllers are just the better choice, I strongly prefer the Steam Controller over any other one.
Sony may not do it, the same way Nintendo might not do it either, but both reserve the right to do so
Edit: If you take a look at the PLAYSTATION®5 SYSTEM SOFTWARE LICENSE AGREEMENT under “6. VIOLATION OF AGREEMENT; TERMINATION OF RIGHTS AND SIE INC REMEDIES”, one of the possible actions they may take states:
disabling use of this PS5 system online or offline
I guess the most hated man on the internet had a point when he called Randy out for having shitty takes