My total amount of vidyas ever owned across all platforms is almost certainly under 100. What do you even do with that many?
Play them.
Barring that, you get a lot of games from bundles that'll never see the light of day. IRL, when you buy bundles, or really any physical product, you can throw it out, regift it, sell it, etc. But you can't do that with digital games. While you can, technically, remove games from your account, there's not much of a draw in doing so.
I have about the same number of games as Arakhor in my library. I've played most, but I can find out within 5 to 25 minutes usually whether or not I'll like a game. Most games I enjoy end up getting 20 to 60 hours of mileage. And then I have the heavy hitters at 200+. I've spent in the neighbourhood of 1000 hours, probably, in Minecraft and San Andreas (this is a complete guess, though, as neither were on Steam). Crusader Kings is near 900, I think.
Then you have people like
@Birdjaguar who have something like 3000 hours in PoE.
I envy that, kind of. My motivation to play a game dwindles pretty quick, and I've gotten the most mileage out of multiplayer games. And even then, over the course of many years. Minecraft has been since its beta, so a decade or so? San Andreas is probably ~120 hours single player and the rest multiplayer, the latter of which was over the course of four or five years. CK2 had a similar timeline and similar ratio. For me to get to the 2000/3000+ hour zone in a game, it'd probably take nearly 20 years of multiplayer. I very highly doubt I will EVER reach that number in a single player setting.