Someone else raised the same point and I responded a bit differently, but I don't really have any experience with lots of these changes that really matter in many projects. Sure sometimes a version of imagemagick is fucky, but that happens so infrequently that I don't think it justifies running everything in docker.

I think you're really sleeping on the benefits of being able to spin up and change an environment easily.

Its easy to load a container with some stored test state. Its easy to load a completely fresh environment. Its easy to run multiple instances of things (with docker compose).

Its easy to totally shutdown the environment.

Its easy to work on different branches with different/conflicting dependencies and juggle containers.