This bug occurs in v1.20.41.
The smartphone I use is Xiaomi Redmi 9T.
The keyboard l use is Google keyboard.

•Opening "Hover Note".
•Typing or changing text in "Hover Note".
•Opening "Delay in Ticks" text box.
•Changing "Delay in Ticks".
After doing these actions, opening Command Block, keyboard opens automatically and characters are typed into "Command Input" text box without permission.
Even after doing these actions, once opening keyboard, for example by opening chat or naming some item with anvil, the bug doesn't occur.

I apologize for attached video is difficult to view.
I would be grateful if you would fix the bug.