Small aerospace company. We had a really old school CEO at the time the project was started - didn’t even want us using GitHub since it was on the cloud. Everything runs on an on-premise IBM i Series (AS400 / IBM Mainframe).
I pushed hard and was able to get us to the point where stuff runs in PASE with modern languages (like PHP).
It’s not any specific licensing issue, just organizational distrust of anything that isn’t paid for.