Thaeris Seeing as the program was updated just a few weeks ago, I presume everything should work.
I am a great fan of RA2 (which renders very differently than RA) and keep an older computer around for the sole purpose of playing RA2 once a day. I claim no expertise with OpenRA because I don't use it on a day-to-day basis.
However, several thoughts for what they are worth:
(1) I checked the OpenRA website, and the last version that I see on the site is Release 20210321, which dates to March 2021. Release 20210321 is the version in the repository and is also the version on Flathub. If OpenRA was updated more recently, I can't find it.
(2) I've tried different versions of OpenRA (Windows, Solus, Flathub, and Steam running on Windows) at various times. I have had wonky experiences with each of them. Nothing major, but things like inability to change the view so that I can move around the battlefield, periodic unexplained slowdowns and so on.
(3) Of the two Linux versions I've tried (Solus, Flathub), the Flathub version seemed to run better (perhaps because all the dependencies are in the flatpak), but as far as I am concerned, OpenRA remains something of a mess.