Other options for Mac/Win/Linux =3
Davinci Resolve
* CorridorKey plugin (cutting edge green/blue screen "AI" masking)
* Blender EXR workflows
* Paid (unless buying a really expensive camera)
https://www.blackmagicdesign.com/products/davinciresolve
https://github.com/alexandremendoncaalvaro/CorridorKey-Runti...
Cinelerra GG
* less popular, but had GPU cluster acceleration at one point
* FOSS
https://download.cinelerra-gg.org/?path=%2Fimages
Shotcut
* simple to learn
* compatible with most platforms, but slow
* FOSS