I removed some of the games where the numbers were way too inflated (I did not play 200+ hours of Loop Hero), but some of the games on here still have more hours than I put in. I'm pretty sure my wife has played a significant amount of hours of Civ V and Sunless Sea on my account, while my kid played a lot of Pikuniku and A Short Hike.
The new additions this year are Barotrauma, Middle-Earth: Shadow of War and Backpack Hero.
Baldur's Gate 3 should be on this list as well with almost 100 hours now, but I don't play it through Steam so its hours weren't tracked.
I somehow lost almost half an hour of playtime in Civilization V compared to last year. Maybe it got rounded up last year, but I did play quite a few hours just a few days ago, so I'm not sure what's up with that.
EDIT: I realised any games I played through Steam's family sharing aren't included either since they don't show up in GOG Galaxy under "Owned Games".
So Rimworld should be in this list with 172.5 hours, Conquest of Elysium 3 with 75 hours and Cyberpunk 2077 is a new entry with 50.5 hours.