How to backup Plane instance?

[CodeCuration]

I installed Plane using one click method.

https://developers.plane.so/self-hosting/manage/backup-restore#community-edition

Where can I find setup.sh for backing up instance of Plane?

I tried finding in each container started by Plane but can't find any setup.sh, maybe because it was installed using docker-compose?

How do we backup this instance then?

Official docs suggests to backup:
plane-app_pgdata, plane-app_redisdata, plane-app_uploads and .env