Do distros still come with original vi? My understanding is that when you type 'vi' you get a minimal version of vim on most (all?) distros theses days.
'vi' is still 'vi' in OSX, and I believe the "original" 'vi' is accessible as 'nvi' on the usual Linux distros. (e.g., https://packages.ubuntu.com/focal/nvi)
nvi is new vi, released as part of 4.3BSD-net2. The only place I have encountered original vi is on Solaris. Solaris vi does horrible things like crashing if you maximize your xterm too big...
