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)

Ubuntu: Install xrdp

 When I'm connecting from my Windows 10 laptop, I want to use mRemoteNG to keep my machines/connections/thoughts organized. I also run my VMs on an old laptop running Ubuntu, which means I'm using xrdp instead of VNC to connect.

Since I never remember the steps to reinstall xrdp, I'm sharing them here, so I remember next time:

sudo apt install xrdp sudo systemctl status xrdp sudo adduser xrdp ssl-cert sudo systemctl restart xrdp sudo systemctl status xrdp