No, it isn't fully resolved yet. At least for me.
When reloading the catalog page, only ~ 1 out of 3 attempts shows labels and filter options.

Still b0rked for me too.

It is working for me. Actually I'm not sure if it was issue for me to begin with. Been to busy to check until now.

Edit: Never mind, hide own games just disappeared on me. lol

I still don't see the "Show only games in my wishlist" option in the Discounted Games page.

NOT solved here yet ANY of the 6 issues I know:

1) GONE "hide owned games" filter (whatever exact words are)
2) GONE "show only wishlisted games" filter (whatever exact words are)
3) GONE "show dlcs for games I own" filter (whatever exact words are)
4) The results do NOT mark "owned, IN LIBRARY" vgames (Mortal Kombat 4 for me)
5) The results do NOT mark "wishlisted" vgames (Mortal Kombat Trilogy for me)

Where 1) to 5) do happen: Every store list. To name some:
-Store -> Browse all games -> All games for Windows
-Main page -> "Now on sale" section -> Any "Browse Deals"
-Any results doing click to the developer or publisher name link
on the "Company:" field ("Game details" section)
on Any given video game page
-Any results doing click to Any Genre link
on the "Genre:" field ("Game details" section)
on Any given video game page
-Any results doing click to Any Feature link
on the "Game features" field ("Game details" section)
on Any given video game page

Links to replicate my screenshots:
AA.png
[url=https://www.gog.com/en/games?query=kombat&order=desc:score]https://www.gog.com/en/games?query=kombat&order=desc:score[/url]
BB.png
[url=https://www.gog.com/en/games?developers=midway-games&order=desc:storeReleaseDate]https://www.gog.com/en/games?developers=midway-games&order=desc:storeReleaseDate[/url]

Others relevant:
6) All the wishlist filters "discounted only", "under $5", "under $10"
et cetera do NOT filter properly
https://www.gog.com/en/account/wishlist

Disclaimer: I have NOT nor plan at all to create a ticket
WHAT FOR? GOG close them immediately without any support: A total waste of time

And many thanks to Clownski_ for keeping us posted!
Uh! he has not?! OK... Many thanks for nothing then!

Well ...
post

What tag+ has noted applies for me, too.

The Store search toggle options are not complete at this time. Their post here is complete, so my addition here is just to confirm that 'tag+' isn't the only GoG user it's affecting.

For about an hour, it worked. When I came back online a couple of minutes ago, the options were no longer available, so yes, this issue must have resurfaced and needs to be fixed (again).

Yes. Of course.
Where else should they be marked as owned?

Edit: I just checked (again).
I see my games marked as owned on these pages:
https://www.gog.com/en
https://www.gog.com/en/games
https://www.gog.com/en/promo/20231011_ubisoft_publisher_sale

But I don't see them marked as owned on:
https://www.gog.com/en/promo/20231016_thq_publisher_sale
and
https://www.gog.com/en/promo/20231016_cozy_autumn_sale?source=news
and
https://www.gog.com/en/promo/20231016_akupara_publisher_sale?source=news

Thank you. For me they are marked only on the first of the six.

I deleted cookies and website data, logged back in, accepted the necessary cookies, and everything worked for a moment. However, after switching from the store page to one of the sales pages, the options disappeared again, and the games in my library are only displayed on GOG's main page.

The Discounted Games wishlist filter is still broken. Are the GOG devs aware of this?

Yes. It has been like this for ages.
However .... once the filters in the store work again, you'll have a better solution there.

Two days and still broken (reminder: owned/wishlisted markers and filters missing from catalogue/sale pages).

Can someone please confirm or refute the rumour that this bug is only on the website, not galaxy?