> I can still play the games I bought on the nintendo switch 8 years ago.

If those were digital copies you might have chance, otherwise don't count on them to keep working for long. The carts Nintendo used were made with memory that degrades when just sitting on a shelf and people are already reporting that their DS games are failing. I've got an Atari 2600 that still works and plays games fine though. Never even had to replace the joystick, which easily beats the joycons which drift after 400 hours