One interesting thing, if I want to stop and destroy the app it will try to download another base image. What the hell? 
:/var/discourse> sudo ./launcher stop app
x86_64 arch detected.
WARNING: We are about to start downloading the Discourse base image
This process may take anywhere between a few minutes to an hour, depending on your network speed
Please be patient
2.0.20220818-0047: Pulling from discourse/base
Digest: sha256:7734701087766821ffb2ddcef423754798bd345c2ac0d550131c6e6905c268e8
Status: Downloaded newer image for discourse/base:2.0.20220818-0047
docker.io/discourse/base:2.0.20220818-0047
You have less than 5GB of free space on the disk where /var/lib/docker is located. You will need more space to continue
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg00-var 9.8G 4.9G 4.4G 53% /var
Would you like to attempt to recover space by cleaning docker images and containers in the system? (y/N)y
If the cleanup was successful, you may try again now