actually bitwarden runs as docker, because its folder name is docker.
I modified the run.sh to docker-compose -p bitwarden up -d, so I have a bitwarden stack in portainer and not a docker stack which confuses me all the time, but after update the modification is gone. You could simply rename the folder to bitwarden or add a project name in env or add -p bitwarden to docker-compose up in run.sh, but please change it to something that looks like bitwarden and not docker.
Just created a feature request here. Hope it’s implemented.
To resolve your issue, you could just create the
.env file as described in the above link.