Everyone loves to gripe about Markdown, but I think this the killer feature which keeps it so prominent: it's right at the sweet spot of staying in a writing workflow while still having enough formatting capability to cover ~95% of use cases. Despite all the complaining, I don't expect it to be replaced any time soon and I think all my notes and writing will be in Markdown for many years to come.
I only have 1 markdown editor, in nextcloud. Is there an app that let's me write markdown and then save as .md for publication by something that makes that HTML?
markdown isn't viewed as plain text, though. So a markdown editor lets you edit markdown while seeing what it looks like, with things like "make this highlighted selection bold" as a keypress combo or a button.