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.
One that's two years old at that. Its not the best solution, but it's the only one we have if you absolutely need glide typing.
It hitches up sometimes and I find myself getting the wrong words more than other glide typing solutions from closed source keyboards, but it's not horrible.
Sorry I wasn't more clear on this in my original post.
Lol I know the pain. It takes a few days to get to acceptable typing speed, but you can get pretty fast (some report 56 wpm which is pretty good for a virtual keyboard).
Just make sure you know what you want between Thumbkey or Messagease layouts. I started with Messagease layout and it was all good until I spotted some really nice Thumbkey programmer layouts and switched.
Heliboard has multiple dictionary support. Florisboard is still in development for this feature, from what I know. Unexpected Keyboard has none by design, being made for termux and programming.
The unconventional list also has none by design, maybe because there's less of a chance to fat thumb the keys.
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. Microsoft Swiftkey works but is not perfect and not FLOSS.
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.
Yeah, I've been using it for about a year now. It's a little frustrating that it will learn my misspellings before it suggests a proper replacement, but otherwise I have no complaints. Direct upgrade over the stock AOSP keyboard.
I used to use Gboard for Cantonese input. I downloaded fcitx5 reading your comment and tried it for some time. There are some features noticeably missing compared to Gboard.
top numeric row
single-hand mode
simplified and traditional characters selection#
# Found it. It's in the settings bar at the top of the typing area. Click it open and go deep inside it.
What Gboard and fcitx5 both don't have for Jyutping input is glide typing. I wish fcitx5 have it because it is really what could make me switch and not look back. Gboard in general has better finger tap detection/correction because duh Google had more data to train on. But I will definitely start using fcitx5 because being open source is sufficient for me to switch.
For languages that isn't supported by its plugins like Japanese, I have to keep using Gboard though.
Fcitx5 is the best for Chinese. Honestly very impressed that there is a open-source keyboard this good for Chinese. Only thing missing is fat finger error correction (like autocorrect but it works on the preedit text instead of text already output)
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.
Oh, I don't use any autocorrect.😅 Does it have one? I know it has autofill, suggestions with dictionaries and spell check, but not sure if it has autocorrect.
I have all of these disabled (I only have the auto-capitalization after a period and auto period after double space).😄
Wait, are you on beta? I think they have gliding, but it is only for gestures, not typing.
I just start writing in the different language and the suggestions + autocorrect switch for me. All the languages (other than Korean) use the same keyboard layout and for the umlauts I need to hold the aoeu shortly to get the right umlaut, or I just rely on the autocorrect.
I like Fossify's, but I won't recommend it - it has no predictive text and no symbols on its main keyboard, the first which is a huge deal for almost everyone. Not sure if they're working on those or if it will never get those features, because if it had those two it would be the perfect keyboard because it's so great in every other sense.