Could you specify wether these support physical keyboards? (showing only a toolbar when one is detected). I'm using the default proprietary Kika-keyboard on my device and it's not great.

Fcitx5 for Chinese, and Flickboard for English. Honestly sad that there isn't a decent open-source keyboard for Japanese though.

I've been down this rabbit hole and here's the haul from Wonderland:

Conventional:

• Heliboard - Has glide typing, but the available library is unstable and old. The most polished.

• Florisboard - Currently under heavy development, but what's there is more than usable and very well done.

• Unexpected Keyboard - I actually love this one, but as a Fold user I need some auto correct. Uses swipe motions on each key for symbols and punctuation.

Unconventional:

• Thumbkey - A 3x3 grid using taps and swipes to type. I flip flop between this and Heliboard atm. Has circular motions to input caps or numbers. MASSIVE amount of layouts, including language, programmer, writer and more. Easy layout switch key on the fly.

• Flickboard - Same setup as Thumbkey. This would be my go to ever since they added a landscape layout that smart switches on inner Fold screen, but there's no separate key height for it, so you have to deal with non-uniform on one screen which isn't easy to type on. Also has circular motion for caps. No numeric, but there's the option of having a small number column.

• 8vim - The only one of it's kind since 8pen died. I'm learning this one and it's great, but wonky on inner Fold screen. Its hard to explain, but you use circular motions around on X wheel to input whole words at a time letter by letter. Start center, drag out into a quadrant, rotate to get your letter, go back to center, without lifting go to your next quadrant for the next letter. When you're done and back on center, let go to insert space, or you can move out into a quadrant then lift to end without a space. Takes a lot of getting used to.

Openboard (fdroid)

I use the following keyboards:

• Florisboard (supports 한굴)
• FUTO Keyboard (supports voice input, although not very polished)
• Typewise Offline (proprietary, best keyboard layout, good dialect support)

After trying couple of keybords (mostly AnySoftKeyboard and TypeWise [proprietary]) I have settled on Unexpected Keyboard due to easy switch of keybords to get to japanese keyboard and tts button.

FlorisBoard

I've been using FUTO Keyboard and I'm very happy with it so far. EDIT: It's not FOSS but the source code is available and you are allowed to copy/modify it, just not to make money from it. That's good enough for me.

I use Fcitx5 for its Chinese language support.

Preference for AnySoftKeyboard.

Why is there so many censored posts about keyboard apps?

Heliboard which is an active fork of OpenBoard.

ive been using heliboard for a while now. no complaints.

Florisboard beta is what I use. Extremely customisable. I think the biggest things that lacks are custom background photo and text-gliding (I ~dont use any of these though).

I made it almost identical to the gboard theme I was using previously and it's so cool.

I like HeliBoard. It automatically switches between the languages I write in.

I don’t know, but Thumb-Key is written to by a core Lemmy developer, dessalines.

I love the fulliness of unexpected keyboard