Keyboard69 (the android version of nintype) was wild. I loved the visuals, but the learning curve put me off sadly. I wish the dev had stuck to it, it really was the keyboard of the future, way ahead of its time.
Reassuring to see the love for Swype in here. I’m still using Swype on Android. I’ve tried many other keyboards, gboard comes closest but still lacks some of the quality of life little features from Swype.
I had the same problem - this extension saved my RAM: https://addons.mozilla.org/en-GB/firefox/addon/auto-tab-discard/