I still feel like I'm developing my practice. I'm using the "sync to local folder, upload to neocities w/ WEBDAV" pipeline, which is functional enough but definitely involves extra steps. I think it's just a price I'm going to need to pay in order to avoid the future opportunity costs of having to rebuild again. I considered GitHub Pages as one option, for example, since I'm already using that for my professional website, but I don't quite trust that the rug won't get pulled out from under me there in 5 years.
As far as Publii itself goes, the Markdown editor is almost like basic posting here, in that you can always just put raw inline HTML into things. That works well for Barleyposting, for example, since I only ever need to post one image (or very occasionally a few images) at a time. However, the image assets need to be organized in advance and linked to directly. For more complex features, such as lightboxed image galleries, the WYSIWYG interface is pretty powerful, but it's a little heavy-handed in the way it sanitizes changes made to the raw HTML. I feel confident that I can form new habits around its idiosyncrasies, but my habits from posting here are pretty ingrained at this point.
There's also the issue of modifying the theme itself, which I feel much less confident about, but at least the option exists to do so on a broad scale if I need to, so it all seems a lot more viable for posting purposes than building standalone sites.
As a final caveat, I did not have time to research all the alternatives, so Publii may not be the best road to Poster's Delight. It's what I struck upon that seemed like it would come together fast enough given the circumstances. Certainly there are folks here who would know better than me what the tradeoffs are for other alternatives.

