@vees This is effect of stupid javascript frameworks. Normal HTML form will not lose the text when you go back, for example.
There are lots of shitty javascript frameworks and sites that do bonkers UX, I have 5+ addons to "unfuck web".
There used to be "edit in external editor" simple addon for this, which saved both locally and into the form, but now because of various reasons you need to actually run a tiny web server *and* have addon just for this, because it needs to execute editor.