The only stupid question is the one you don’t ask.

First, I don’t like calling proprietary software “official”. Proprietary software is just software with closed source code. What makes something official is someone deciding “OK, this is what we are going to use” or that it definitely came from a particular source. Getting Docker directly from Docker repositories rather from a distributions repository for example.

My general take is if FOSS can do the job, I use FOSS. If FOSS can’t do the job I need, then I will go with the best proprietary solution to my problem. If I go with FOSS, I tend to prefer using the repository of the project in question rather than my distributions repository. The projects repository tends to be more up to date and there are fewer opportunities for ba actors to play with the code. Downside is that these repositories may introduce changes that may bork your OS when/if you upgrade to a newer major version. FlatPacks and AppImages help to mitigate this.

Hope that helps.

Probably, though you may have to dig to find them. Lemmy is rapidly becoming like Reddit in that if something exists, there is probably a community for it. If your local search doesn’t bring anything up, I would check on lemmyverse.net. It seems to have indexed most if not all of the current communities. A quick search just now for “liberta” pulled up roughly 10 communities.