I’ve had this issue before. My limited understanding is that your home server fetches copies of communities somebody on your server is subbed to. But if you’re the first person, it can take it a few hours to federate (took mine a day.)
I understand those concerns, but I’m not sure if this really improved the security of mastodon, an inherently very insecure software, and it definitely deprived us of a useful tool. Defederation works at stopping spam, but I don’t think it really helps much when it comes to preventing people from seeing things you post. It stops a single server, but bad actors can just migrate to a new one, or spin up a new hostname.
I hated the backlash the bridgy dev received. His project was genuinely useful, helped to solve one of people’s most common criticisms of the fediverse. And after he was browbeat into giving it up, everything still got hoovered up by bots and fed into AI models anyway.
I think Debian unstable works great on laptops, and it’s hard to beat for stability.
I use FBReader everyday. When you say that it’s netblocked, what do you mean? I’ve been able to use it in airplane mode with no issues. I’m using v3.7.6.