I have multiple documents open, all documents maximised and in canvas mode (so that titlebar doesn't show), If I try to switch document using a keyboard shortcut, the titlebar shows up instead of staying in fullscreen. If I am not in canvas mode the documents stay maximised without showing the title bar

I'm using Krita x64 v3.3.2 on Windows

My settings are default, multiple windows mode is set to Subwindows, all options on Canvas Only settings are ticked and I've assigned a keyboard shortcut for:
Menu--Window--Previous
and
Menu--Window--Next (both needed to switch documents when in full screen canvas mode)

Heres the visual example:

1. switching to Canvas mode
https://imgur.com/5krioQO

2. Pressing the keyboard shortcut to switch to the next document:
https://imgur.com/6XPRbOJ

Sorry, there's nothing that we can do about this -- it's the way QMdiArea works, and that's part of the development platform, not our own code.

Thanks for the quick response

The workaround I'm trying is to have multiple instances of krita open instead of one Krita opened with multiple documents,

I've unticked the option "Allow only one instance of Krita", so far seems to work ok except I can't color pick from one instance of krita to another, is this something I can do?