for English i use heliboard. but i type in other languages also, and there are no practical choices in foss keyboards for those specific languages which also have the mainstream IME/key layout for my language (not qwerty).
fcitx provides some hope for the future but for now, it also doesn’t have the IME/key layout for my language (only has qwerty). hopefully it can also have handwriting in the future somehow (if only via user-installed model/blob similar to heliboard glide typing).
anyway, I’m on Graphene OS. so i wondered if revoking network permission and setting gboard permanently to incognito (is permanent possible?) would suffice to cut off data collection?
edit: FYI the languages/key layouts i need are Japanese via 12-key flick and Cantonese via traditional Chinese handwriting input
That’s what I’ve been doing. I use Futo as my regular keyboard, but Gboard for Japanese input. I did have to give it network access very briefly when I first installed it to let it download some dictionary/autocomplete. But working fine since I disabled network again after that.