[chrisseaton]

Ah it’s about licence not code availability.

[IshKebab]

Code availability is important too though. I'd much rather use something that had code available (e.g. Unreal Engine) than something that didn't (Unity) because sometimes things aren't documented and you need to read the source to find an answer.

[yjftsjthsd-h]

Yep. After all, Windows was source available in different forms even in the "old Microsoft" era (education and government programs, IIRC).