Best way to theme GNOME/GTK apps on KDE?

The only instructions I’ve found so far are for non-atomic distros

Okay I might be stupid because I just figured out that it’s in system settings already. Granted, it still doesn’t follow my window decorations and other apps don’t respect it at all and show up as default white gnome (Popsicle).

For other people trying to figure out how to do this:
System Settings > Colors & Themes > Application Style > 3 dots on the top right > Configure GNOME/GTK Style

I found out that any other theme that is not Breeze disable dark theme on GTK3 apps. GTK4 apps are way less customizable though, but they respect dark theme. Anyway, you can edit window decoration things like button and border style

Button and border style aren’t respected on most apps unfortunately. So I take it that there isn’t something like Kvantum for GTK?

By design it’s not possible to theme these elements, GNOME values application developers over end-user theming.

GNOME also uses client side decorations rather than server side, so if you tried to force something like Kvantum you’d just have a titlebar around the application’s title bar.

insert general vague expression of frustration

Okay so on that note, why did Bazzite switch from a QT to a GTK software store without an option to switch back like Aurora offers?

We are toolkit blind and care only about the quality of the software in question. A Windows user will go from a QT app to a GTK app to a WinUI app to some in-house solution and not bat an eye.

Okay but we’re not Windows users lol so I’m not so sure that’s the best comparison

You’re right, we are on a desktop that has 3% of the market on a good day. Holding things back so people have a toy they can throw themes at is not going to fix that.

What’s with the attitude? You could’ve just made your point and left it at that.