I only picked up emacs last year after being a die-hard vim user for 8+ years and org-mode was a large reason why. I wanted to learn how to manage todos and documentation alongside my code - it's incredible. Lifechanging.
The only negative is trying to teach others to use this workflow. I haven't found a tool yet that can easily transform todos in org-mode into something a product manager could use. Exporting to HTML makes sharing docs a breeze. Maybe workflow tools are a rarer use-case or I just haven't dug far enough.
Either way, org-mode definitely worth learning in 2021