So, this morning I updated my Fedora 43 KDE workstation to Plasma 6.6, and I noticed some bizarre issues. I noticed the icons for Ungoogled Chromium and OBS studio where not rendering correctly. Eventually I noticed that these where the only apps on my computer that looked wrong. Every other app icon is rendering correctly. These rendered correctly on Plasma 6.5.X. Very strange.
At first I assumed this had something to do with all the random packages and changes I had made to my system over time, so I updated my laptop running Fedora Kinoite, and ran into the same issue. I then installed these apps on another computer running KDE Linux, and ran into the same issue. So clearly its not anything to do with my install or a packaging issue with Fedora.
Not really a big deal as the apps work just fine, just thought it was interesting. My only thought is that these apps use a different image format their icons than everything else. They are also both flatpaks. So uh, yeah.