Japanese have a flick-style keyboard, very similar to T9. Instead of pressing a key multiple times, you press one key then flick up/down/left/right to choose a letter on that key.

https://www.youtube.com/shorts/BhD6r8NKlmY

I find there's a lot more intention behind your actions and I make far less typos when I'm flicking in Japanese vs typing on a touchscreen QWERTY. Being a second language, typos are even more common because its not at recognizable at a glance you made them, so the flicking been a huge improvement.

I always wonder if English should have something like this. I guess "MessageEase" is the most similar thing...