I've switched to Gboard on Android back in the days, when it was the only one with proper multilingual features, and been using it ever since.

I've experienced the opposite: I actually found it rather more helpful than not, despite the occasional errors like you mentioned. But nowadays it's quite rare that it "mispredicts" a word. And what I've found extremely helpful is, that nowadays it doesn't only correct individual words, but it picks up other grammatical errors as well in the sentence. So it's working for me.