On my Galaxy Tab S8 Ultra, the mouse is not working:
controlling via touching the screen i working
using the touchpad on my keyboard only yield erratic movements
using an external bluetooth or USB mouse the movement ist restricted to an extremely small area in the upper left corner (about 2 mm in size)
It did work on an old Tab S4, so maybe the issue is connected to Android 13, but there must be a solution ince VNC viewers do work in other Apps and the mouse is working in the intial setup screens, but no longer whener Debian is started
On my Galaxy Tab S8 Ultra, the mouse is not working: