I used a non standard keyboard a long time ago and while it did deliver, the most important thing I learned is that non standard things tend to disappear and the time spent learning it was wasted.

I’ve never felt the need for such a thing, but why limit yourself to just one? Just try both and see if they work for you.

The fastest touchscreen keyboard I’ve ever found is OpenBoard with Gesture Typing: it’s both a regular keyboard and a super-fast Swype-like keyboard. It’s open-source and it doesn’t connect to the internet, so you don’t need to freak out because the APK is 2 years old.