the reality is that it can’t be the standard. id Software is the exception because they happened to own 99% of the code.

Ubisoft can’t release the source code to some random game because it uses a lot of other companies code for physics, sound, networking, AI, scripting, graphics, everything.

The most realistic answer to this is that if you don’t offer public access to copy-written works for 10 years, then it should fall into public ownership. let people pay for it or let the public own it.