Seems to be just normal vim, maybe some distros packages the binary (of vim with more options enabled at compile time) as vimx so that it doesn’t conflict with another vim package (as an example vim-tiny). https://www.systutorials.com/docs/linux/man/1-vimx/
But only @aram@garam@lemmy.my.id, can answer that for us.
Basically see the wiki below but I would like to add is Linux only.
Don’t know if there is something like v4l2loopback for windows.
https://github.com/umlaeute/v4l2loopback/wiki/FFmpeg#using-an-android-device-as-a-webcam