It is sad, that GOG Galaxy updates are almost exclusively marketing and sales updates.
There are so many QoL features which people are asking for and they do not implement for quite a while now.
I can't understand why they put so much time on that "Discovery" page... it is absolutely useless for me, there are already two ways to scroll the catalogue, the main site and the filtered one, and both are accessible by a normal browser, but they are introducing an additional way to browse for games, that not only has less functions than the others, but that works only on Galaxy, so it is a Store page that only GOG users will be able to see !!
Still despite all the lacks, Galaxy became my preferred launcher... it has a way to show the games that I find it clear, and when i added to it all the other stores I have I actually discovered games i didn't even knew to have in one of my libraries...
For example "itch.io" has a cool client, with a cool optional tabbed browsing experience, but the way the library show the games don't attract me very much and I was never so willing to check it... on Galaxy the list is so clear that I was like "WTF !! Where is coming from all this good stuff ?!" (Unluckily anyway the integration is able only to list the games, and not installing/launching them... but at least I can tag them so to keep in mind that I have those on that account)
"indiegala" has a not so bad client (but is ten times better than their site), and has a native section just for adding free games, but still the library view is not enchanting, so it is cool to have that list on Galaxy too... there are anyway the same limits of itch.io, games can't be installed/launched from Galaxy
I have "Ubisoft Connect" just because adding some free games... that I never play, because I never open that client unless there's a free game around to be added... but now with Galaxy, I installed a game that I didn't see it was from that account, and I'm playing it without dealing with that client.
Then the two big of the market, Steam and Epic, those two with hundreds of games and different way to manage them, both with very slow clients, and while Steam in the years ha implemented a somehow practical way to manage games with categories and filters, I don't like how the library is shown... for Epic instead the library is so slow that unless you already know what to filter, it is a pain to scroll... for these two, Galaxy is AWESOME, not only merged duplicate games in a single entry, adding automatically TAGs like "Completed" to games that I already played on another store, but I can just launch them without dealing with those two clients, and especially with Epic, when launched this way is a lot faster then when the interface is visible.