Possibility that the note covers the entire empty space when the UI is hidden

What I’m trying to do

I’m looking for a way to make the note page take up the top space when the rest of the interface is hidden. It’s possible?

MP4_20260114_150623

I’m trying to get it using position (learning to use it along the way) but with no result so far.

It may be a problem with the theme you’re using. I don’t see that in the default theme.