Global theme issue after update

Hi there, after one of the last updates I noticed that a few apps (Firefox/Librewolf, Telegram and Fluent Reader) lost the compatibility with the global theme of KDE. It’s not a big issue, I’m using whitesur-dark for the windows decorations, but in the apps I mentioned it doesn’t match, I see some generic windows buttons that are more similar to the ones used by Windows. They used to work fine a few days ago.

Here’s a couple of screenshot, the first one is Firefox and the second one is how it is supposed to look. Anything I can do to solve this?