Upgrade was smooth as is to be expected with Fedora and everything is running smooth. Libadwaita is not as bad as I thought it to be, and it actually looks really good. I wish they had taken the time and effort to create a GTK3 theme for applications that are not libadwaita aware, but fortunately someone else did. It does look horribly inconsistent without. Bad move.
Other than this, I do not miss the theming at the moment now that I added some transparency in the top bar and dock.