The Heliboard keyboard (opensource), based on Openboard, is pretty damn good on at least 3 languages with a seamless typing experience with predictions.
The trick config is to use one language (english) then use "sub languages" that you need. Don't just tick the 3 languages on the list or you need to switch manually between them when typing.
An efficient solution would to just stop using Google's services all together. That way they can't spy on you so easily and make a profile from your internet habits.
There are plenty of alternatives to Google services in the opensource realm.
When I installed Tumbleweed not so long ago, I also had problems. The installer is notorious for giving you an unusable system sometimes, even when using the defaults.
I have been running Tumbleweed "stock" on my desktop for about 10 months now and truth to be told I never had a problem with it, including updates. Rock stable with a nice snapshot feature as a safety net.
That's why I'll wait to install Kalpa on the desktop. Just no reason for it.
I have of course run into bugs but those came from KDE. Can't really blame Tumbleweed for those.
In fact, Tumbleweed is the reason I went all in with Linux and ditched dual booting Windows, as I had been bit pretty hard early on my linux journey with other distros and made me think twice using Linux as a daily-reliable-driver.
That's all you really need to do to break windows. /s
Edge/Internet Explorer is/were a cornerstone of any Windows install. Uninstall that and you can get all kinds of weird issues on your system.