I want to thank you not for the feature itself, but for listening to the users.
Thank you, GOG.

By the way, I really like the Community Wishlist, it reminds me a lot of Proton UserVoice.

Is there no way to see it without making one’s profile public? I can’t find any way to access that list.

Good to see, that's a proper improvement, unlike whatever the hell they are trying to do with the homepage.

I suppose you mean without your profile being enabled. I don't see a way since its a part of the profile. Your profile being public is different - you can disable everything being visible to yourself only and nothing in it will be public after you enable it

It seems I can not really make it fully private. Some things like the number of owned games, the number of unlocked achievements and the game time spent with Galaxy stay public whatever the settings I use.

That is an issue, yes. As a momentary workaround, I guess you could briefly enable the profile when you want to check what games you reviewed, load the pages, then disable it again. Not a proper solution, of course.