With the extend mode, the remote mouse and keyboard are working on my tablet.
The Spacedesk videowall mode is not enabled.
Yes. Before when I opened on an app such as Write on pdf or Samsung Notes on my tablet, it was possible to annote them with the stylus and to share it through Zoom with my students.
Now the apps on my tablet do not open in the Spacedesk window. So I can’t share them via Zoom.
The only thing I can do is: open a software on PC and move it on the screen of my tablet. The problem is that is the Windows 10 softwares are not optimized to be used on an Android tablet.
Once again, thank you very much for your involvement to sort out my problem.