I'm using Manjaro KDE.
So far. this icon theme set is amazing and the most complete I've tried. Just a few "annoyances" if we want to call them that way, in case you can and want to fix it.
The system settings icon appears in the latte dock but in application menu it just leaves a standard gear;
The same can be said for add/remove software, which just has four squares.
This only applies to the application menu (the smaller one). Also when I right click on the desktop and the window appears, not all icons are replaced, the same in dolphin, those which list documents, downloads etc... are left untouched, but this can be even better in case you make it transparent with kvantum, like in my case. Again, it's literally a non-issue, but in case you want to make it even better... I'm glad to help!
Cheers.
I'm using Manjaro KDE. So far. this icon theme set is amazing and the most complete I've tried. Just a few "annoyances" if we want to call them that way, in case you can and want to fix it.