I'm currently using my PC at home Steam Deck on breaks at work and PS5/VR2 when I want motion sickness. Steam backlog alone is pretty long... I still have NES games I want to play sometime.

I'd keep them. Space is a small price to pay for nostalgia long term.

Never recycle them. Video game preservation is important to a lot of people.

You can definitely sell all that if you really don't want it to someone who wants it more.