Ubuntu: Error pop ups when connecting via xrdp

I can't possibly hope to do justice to the write up of the fix for the error popups while using xrdp on Ubuntu that's found over here:

xRDP – Infamous “Authentication required to refresh system repositories” popup on Ubuntu 19.04 – The correct fix !!

and

xRDP – How to Fix the Infamous system crash popups in Ubuntu 18.04 (and previous versions)