It's nothing of my business, but why not just posting on a simple, static blog or website? Substack is full of JS and tracking nonsense, as you say, and Medium tries to force you pay after a certain number of reads. You don't even need to self host if you don't want to, WordPress, Blogger or even Tumblr would already be much better than any of those. I'm just saying this because in my still very short stay in the Pub I've enjoyed your longer writings, and it would be a pity to have them buried in one of those places.
I've thought about that, but haven't really found a good fit there, either. WordPress is massively insecure, so I don't trust that, and I'm not sure that it or any of the other major platforms would be better from a tracking/lack of minimalism standpoint. (I just checked, and my adblock finds 9 trackers on a tumblr blog.) FWIW, Medium only charges to read content where the author has chosen to accept paid subscriptions, which I haven't done (and don't intend to). But your point is well taken.
Ultimately it comes down to wanting someplace where I can be found by people who don't already know to look for me.
From a lack of tracking standpoint, write.as is good. They self-host their analytics (which adblock takes care of anyway), so all you'd have to deal with is the Google Font embed.
I'll think about posting my longer stuff here, I just find it a pain as I said to have to re-format things to display properly. The main thing is links, which I can't do inline here, and that makes for clunkier writing (or just not using them, which I'm not sure is better).
Is there another platform that I haven't thought of?