As an alternative I found thumb-key[3], which provides the same basic idea but the differences BREAK MY BRAIN and after some back-and-forth with the dev I realized that he doesn't intend to bridge the gap. So I decided to fork it and implement the features myself[4]. If someone knows Kotlin and is interested, any help will be appreciated =)
Another alternative I found is Unexpected Keyboard[5], someone made a MessagEase-like layout[6], but it's the same problem of your brain breaking because of missing or misplaced things, so this one is also a no-go for me.
[1] https://en.wikipedia.org/wiki/MessagEase
[2] https://twitter.com/_ragingdawn/status/1753840734602686825
[3] https://github.com/dessalines/thumb-key
[4] https://github.com/asdkant/open-thumb
[5] https://github.com/Julow/Unexpected-Keyboard
[6] https://lemmy.ml/post/7576039