Zrevnur: Instead of this arbitrary (far as I can tell) "curated selection" based on type of game - see
https://www.gog.com/about_gog - they should rather curate based on things like seen here: Dont get/sell games which arent updated properly etc.
Define "properly".
Some GOG users suggest GOG shouldn't sell any games that don't have achievements, while the Steam version does.
I am 100% of the opposite opinion, I do want the games also on GOG even if they miss the achievements, as I couldn't give rat's ass about them (the achievements, that is). Same goes if the GOG version is missing some non-English version of the game (sorry, I am just not going to play any of the games in German, French or Spanish; English only), or the Mac/Linux versions.
So... what should GOG do then? Now there are two opposite demands from GOG customers, what GOG "should" do, and what is considered as "updating properly".
I personally think that in general GOG should sell the games, but be open about what they are possibly missing (or rather, what is included with the game). Then the customers can decide themselves whether they are ok if the GOG version is achievements, or non-English, non-Windows versions, or a level editor...
Only in extreme cases where the GOG version is missing some critical update or gameplay content and the publisher refuses to update the GOG version, they might have to go the extra mile and stop selling the game, for their own sake. Like they did with Armello and apparently some other games.