That's technically not true. There are two individuals who do most of the maintenance on all lemmy-related projects and they work for an organization to do so (i.e. they get paid to do so) There are also a bunch of other contributors who do not get paid.

That said, I think the main devs are doing a pretty good job with things. Only one of them works on the jerboa app, and they both contribute to the others. On Jerboa, the main developer gave another trusted developer power to help out by reviewing and merging code, and it's totally understandable why rolling that out to more devs is slow.

I agree with the spirit of what you're saying, and managing a project that's seeing a ton of adoption is a huge challenge. So instead of being critical, I recommend helping out where you can. Everything is open source, so it's really easy to get started doing whatever you know how to do. For example:

• translations - if you speak something other than English
• documentation - make blog posts, post here on lemmy, etc
• testing/bug reporting - use the official release, and once pre-release versions are available, test those and report reproducible bugs
• PR - communicate here and help others solve problems or reproduce bugs; an easily reproducible bug can be fixed in days, a poorly documented one may never get fixed

And so on.