My notes are pretty math-heavy, and for that reason I really prefer WYSIWYG rather than a split view or staring at the LaTeX source most of the time. Something like the Typora editor on top of Obsidian would be great. If only both were open source!

I've been hacking on my own clone [1] for the past year with a WYSIWYG editor based on ProseMirror. Here's the demo page [2] for the math editor!

[1] https://github.com/benrbray/noteworthy (disclaimer: not ready for release -- hoping to polish it up by the end of the year)

[2] https://benrbray.com/prosemirror-math/ (disclaimer: the demo page is quite minimal -- many extra features, like Markdown syntax, copy/paste, etc. can be added through ProseMirror)