Is there anything that can turn your email into a secure personal RSS feed? A feed reader that also includes emails would replace quite a bit of what centralized social media provides.
They pioneered "incremental reading" a technique where an article is split into pieces and ingested by the software and fed back to you in an asynchronous manner at the most appropriate time.
Then the main author apparently started to feed everything, including emails into this system, and so he would consume everything only through this channel. Replying to conversations sometimes month later depending on the algorithm. He describes a bit more the process at the bottom of [2] in the apology paragraph.
https://github.com/wking/rss2email
I've been using it for a few years and, while the command line interface is a bit awkward, it works fine. Since email clients have the same controls an RSS reader needs (read/unread, folders, etc.) it works fine.
Blogtrottr is a hosted service that does the same thing; I also used them for a few years and was happy with the service. Just moved off because self-hosting was in some ways simpler for me.
I use thunderbird, I love it, and I would love it more if I could use it on more than one device....