The Linux Desktop is an archlinux running xfce4.
My android Device is an acer A3-A20FHD.
I took a screenshot from the plain desktop and wanted to show what happens after a long tap taking a second screenshot:
Now the context menu of the right mouse button appears instead of the setting screen – as it should.
Don’t know what changed.
I fooled around with the settings “show remote cursor pointer” and “Enable pointer mode”, the last one activates itself but I can see no influence to the input behaviour.
So far sorry for the noise, I hold my breath it stays the way it is at the moment.