Set default app by filetype

Hi, I have installed the app “plain text editor” (the old text editor). Now, I can edit .md files by right clicking » “edit with plain text editor”, if I open the .md file with a normal click, the default wysiwyg text editor.

How can I set the default open action for .md files to open them with the plain text editor?


Same question. Is there an option in settings or code modification to to set a plain text editor as an editor by default?

Couldn’t find a solution for this aswell.
I uninstalled all text editors except Collabora but when I click on one it just tries to download…