I fully understand your first point and that is how I feel. That’s why I made my comment; I and others have been dealing with endless AAA slop that mostly hasn’t been intriguing for a long time. Even if its a certain game franchise I’m not interested in, I understand other people’s pain of it been driven into the ground with micro transactions and buggier and buggier games.
I’ve never used Portainer but I feel a GUI setup like it just abstracts Docker and prevents learning concepts that are conducive to understanding Docker. That’s why I’ve never used a GUI to manage my Docker environment.