+1 for Typora. It also has a nice option to automatically copy any media that is pasted into a doc into a $doc.assets subfolder so you can keep everything organized.
If you like Zed's collaboration features, I wrote a plugin that make Obsidian real-time collaborative too. We are very inspired by their work (pre agent panel...). The plugin is called Relay [0].
So far the only editor I've found that does this is Typora.