I've been exploring Thunderbird[^1] today, and learned it had a major redesign some time in the last few years[^2]. Not only that, but it now seems pretty acceptable as a feed reader - I'm not sure why, but in the past it would often fail to import feeds. And it even has IRC support! I'm considering using it as my one-stop "technical part of the internet" reader. And since I've started using Posthaven as a blogging platform, it even works as a blogging tool! (or, at least, if this post goes up nicely, that's a good sign)
[1] After about 15 years of using GMail, followed by about six months of Mail.app. Recently, I wanted to sign up to some open-source projects' mailing lists, when I noticed that all prior attempts to join such lists had ended in hasty unsubscriptions. Reflecting on this, I noticed that I really dislike the way GMail deals with threading on large lists, clumping the whole discussion into one big stream. And so I went on a quest for a decent compromise between "usable without too much faff" and "technically decent". I briefly considered Mutt, but at this point in my life I don't know if I want to spend the effort on learning a whole new TUI when I can easily avoid it. Neovim and tmux are sticking with me, but best of luck convincing me it's worth switching to a TUI-based music player or something.
[2] My initial reaction was "this can't be good", but after a few hours I actually quite like it.