Currently playing Talos Principle Reawakened (the UE5 remastered version). For anyone wondering whether it's worth it, yes if you have the hardware for it. Because they also massively improved one of the most complex but also most frustrating mechanics in the original game (with the recorder thingie). So there are very useful improvements overall. Also, it has an entirely new DLC I think, which is again noticeably harder than the 1st DLC Road to Gehenna. Game looks great as well, but you need serious hardware for it. It's not very performance efficient anymore. :) The Talos Principle series are probably the biggest and best 3D first-person puzzle games out there, together with the Portal series. Absolutely recommended.
Other than that, I've played The Ten Bells and Exit 8. These are great small anomaly-hunting games. I've never played this genre before so it was a great discovery for me. If you're curious about this genre, start with Exit 8. If you liked that and prefer more horror elements in it, as well as a bigger "map", play The Ten Bells. Awesome small games, needing only like 2-3 hours to finish.
Its popularity.