My activity feeds do not update anymore. They do not display the latest unlocked achievements. Seems to be a GOG 2.0 bug as the feed on the GOG website is working proprely.

Also noticed the '"recently played by others" section is stuck on the same games since a few months.

Anyone with similar issues?

Yes. This has been a intermittent problem for me as well since closed beta, I'm not sure what causes it. I've had the activity feeds for a few games get permanently stuck and never update.

I reported the bug about a year ago now, make sure you use the "Report Issue" option in Galaxy and report it as well if you haven't already.

I´m too having this bug. I played Mafia DE on Steam, the game is showing up in my library, but I can´t see any unlocked achievements or game time.
Same for Last of us 2 (PSN): When I click on the game in my library I see my unlocked achievements, but not in the activity feed.

My game time tracking stopped working six months ago...