My current laptop is 9 years old, I recently replaced the heat paste and added new RAM. It should definitely be more than 10 years, as my laptop is totally usable for everyday tasks like
Org-mode is splendid and i use it almost every day, but i think what op is asking for is something different.
If i want to write something like this:
s̵t̵r̵o̵k̵e̵
i would use +stroke+ in Org-mode. If i then set org-hide-emphasis-markers to t, the + signs are hidden, but they are still there. If i save the file, and open it in another program, it is still +stroke+, instead of the unicode variant.
The feature asked for was intended for the following use-case:
It would make reading plain text notes/todo lists cross-device simpler.
My phone is not interested in typing on its own.