I am a bit desperate to keep Ubuntu 20.04 from losing it's connection to my bluetooth mouse.
When I haven't used the mouse for a while, it takes several seconds to get Ubuntu to respond to the mouse.
The bluetooth mouse itself with automatically go to sleep after 5 seconds of inactivity. But then if you click a button, it wakes instantly.
But Ubuntu does start responding the mouse events for several seconds.

How can I debug this? Or keep ubuntu from doing this.
It is making my bluetooth mouse very painful.

The last posts related to bluetooth wake are several years old.
Has anyone else seen this?