Hello :)
I love opensuse if nothing else for the great mascot and the very talented artists who do their wallpapers, logos, and splashes. Also their open source font is what I daily drive on my machines! It is very nice!
Sadly they have a small team I think compared to other major distros. Their microOS team I think is just 2 or 3 people.
I have both Kalpa and bazzite and for me, bazzite just works better in almost every case and their encryption scheme and rollback method fits my needs better. But Kalpa is very usable if you don’t game. Otherwise some hours of work getting steam flatpak working correctly.
OpenSuse is such a mystery to me. In Debian, I know it’s community run and there’s a thousand developers all over the world and they vote and discuss everything. Ubuntu is corporate and that’s easy to understand too. But OpenSuse? They say it’s a community distro, but my (uneducated) feeling is that the community is like four Suse employees. Is there actually a community of developers? What is OpenSuse? If someone knows I’d like to know what it’s like from the inside.
Linux Mint is technically an Irish based distro, as well.
IMHO any Linux distribution will be a good change from Windows and Mac if you are trying to divest from US products.
Even if they are not european, they are open source.
I just installed OpenSUSE on both my work and personal machines, having been on Kubuntu for many years prior to that. I love it so far!
Kubuntu is also kind of European, because KDE e.V. is from Germany.
KDE Neon would probably a closer fit, as it’s entirely maintained by KDE e.V., whereas Kubuntu still relies on Canonical