I agree. I never use Animoji’s or Memojis. My frequently used suddenly had Animoji’s taking up half the screen of frequently used after the 13 update and was miserable trying to work around them.
This is what I’ve done to fix it:
In your text, click the ‘App’ icon next to the camera.
Swipe all the way to the right until you get to the three dots. Click them.
Animoji’s and Memojis are automatically listed as a ‘Favorite’. Click edit. Remove them from ‘ Favorites’.
Below, in the ‘More Apps’ section, you will have the option to disable your Animoji and Memoji stickers.
Swipe the green toggle.
Now when I go into type in a text, hitting the emoji button only brings up my normal frequently used emojis.
The Animoji’s are still there, but only if I swipe left. Since it automatically starts on just my frequent emojis, and that’s good enough for me!
Hope this helps!