I rarely open the preview pane,
@Phoebian . As I got used to writing with Markdown, I started to rely on "preview" panes less and less.
For whatever it's worth, Typora is the nicest "edit in the rendered view" editor I've used:
https://typora.io/
It's not free, but it does have a 15 day trial period. Maybe you can try it and see if you like using Dendron to organize and find notes, then opening them in Typora to edit them?