Comment 1 for bug 1866454

Just tested on Ubuntu Mate 20.04.4 and
- second mouse pointer still present on the right edge of the second screen, centered vertically (almost outside of screen just 2-3 pixel inside) as before, no change.
- it looks like the artifacts on current mouse pointer no longer present, (not tested enough time, as artifacts does not appear always immediately)

I do not use this system anymore for desktop use for more testing (is more like a mobile file server and occasional mobile desktop use)

I will upgrade lo latest Ubuntu Mate and return with checking