This. I had the same issue, and just about every tutorial focuses on the command line, and I get why… It’s way more powerful and actually becomes the standard that people who are using docker repeatedly would need to learn.
That being said, this was my first foray into containerizing things since VMware became a thing. So I needed a UI that felt familiar and helped me understand some of the Dockers specific settings and configurations. This was a godsend in helping me get things up and running, and then later I had to learn how to do it properly with docker compose.
For what it’s worth, I still keep my portainer instance running, and use it for some administration stuff like resets, but I think it helps smooth my learning curve. Docker via the command line exclusively pretty much requires you to understand all of the notions and concepts involved.