@hi ghost (https://ghost.org/) is often promoted as a not shit Substack alternative
BearBlog (https://bearblog.dev/) is another option for text only blogging
@hi there is a WordPress as a service at OVH. Not sure if this is to be considered non-big-tech.
@hi ok. They also have "simple web hosting" that is all about using (s)FTP to upload files into an Apache subdirectory - if they’re tech-aware enough.
Note that I have no financial interest in or relation with OVH. It is just the known simple french hosting to go when you’re a french small customer.
I will caution that OVH likes to ratchet up their prices regularly, no "you're on the $N/month plan until you decide to change". I have one of my servers there and it annoys me every year when I re-up and the price has increased. 😑
That said, they run a tight ship with reliable hardware/service, and as loathe as I am to recommend WordPress for such a simple requirement, the ease of WP's "and cross-post this to other social-media-sites" with plugins is unmatched.