Desktop mode doesn't get bluetooth mouse and keyboard, those are stuck on phone screen

Hi,

I would like to use my FairPhone4 with Iode + Desktop Mode with AR Glasses. However, I can use the desktop mode (adding taskbar app), but mouse and keyboard are stuck on the phone screen, and never get on the external display.
It requests me to use the mirror mode, but I would like to use the external screen mode. How to turn this differently? In the developer options there is no “Force Desktop Mode” Option, that exists in the original fairphone OS.

Regards,
Kick