On the other side, there are many MacOS-specific features supported by Emacs, with the recently added dictation support being one of them. If a MacOS feature is missing, it's much more likely to be due to a lack of manpower than a desire to maintain feature parity with Linux.
You can, see the command subed-crop-media-file.
https://github.com/sachac/subed/blob/main/subed/subed-common...