Thread is over, because this is the only correct answer.

No worries. Gramps (desktop) is where I do work on my main tree, and then personally I will do a one-way sync (so that it can’t “corrupt” my tree) up to my GrampsWeb docker frontend so that the rest of my family can view the data.

I don’t understand what you mean by “official docker container” because Gramps is desktop software and doesn’t have a container. The GrampsWeb / Gramps.js is the web interface for browsing it, that can run in a Docker container, but is developed separately.

You can use the Gramps desktop app on your normal computer and then host a frontend using Gramps.js