Depends on your stage of life as well. I'm 41 now and a dad, so I have max 2 hours per day. When I was still studying I played wow for entire days.
Now I enjoy shorter games like Firewatch and Lake. Just finished Beacon Pine. Xbox Gamepass is excellent for this as it's full of these games.
I did play longer games like Mass effect legendary edition, and The Witcher 3, but I only play such long games if I really like them.
Thousands of hours in a game is unfortunately out of the question.