I've tried to use Org for a while. Actually had hundred of pages of notes written in its format. But it never felt right for me. You press the wrong keyboard button it tries to execute the code, you press another key - text gets reformatted, folds, unfolds, etc... It just doesn't feel text anymore and you have to know lots of complexity of the Org itself to make it useful. And all I want is just to write some text and display it. After all, just converted all .org to .md and use Hugo for displaying it in HTML.

Everytime I see an article about Org, I think how nice it would be to use it and feel comfortable in it, it just never worked out for me.

Yeah, I think it could do with a modal interface: normal mode would perform tree-like operations and allow entering text. Insert mode would treat the entire file as plain text.

... there must be a mode that does this already?

You could use hydra [1] to set up something like this pretty easily. I did have a setup like this once, but found that escaping the 'modes' with an extra keypress when I only typically wanted to do one or two operations wasn't particularly nice.

[1] https://github.com/abo-abo/hydra