Occasionally, EA for example, a big corp will donate some money to. Apple has created PRS to add support for Vision Pro.
If Godot was GPL it would be useless for most commercial game devs.
GitHub could only exist because it was built on top of git, which is also GPL licensed. This is not the only example but should be the immediate one since nearly a vast majority of devs touch git on a daily basis.
Maybe stop listening to your legal team and actually think for a moment. GPL doesn't prevent commercialization, what it does is make sure everyone contributes to the same project equally. Shocker, corporations do not want to contribute to the common good they want to rat fuck it into submission for profit.
The Godot foundation picked MIT for a good reason. If your legal team says no GPL then no GPL. This has been standard practice for decades.
The changes you make to a game engine are almost never the important part of your game's IP.
I guess you could sell the game ready to play, and then upload its source code without needed assets somewhere else.
Most companies aren’t going to be ok with this.
I know when I write a project, I just MIT license it. If some of the code I wrote helps you get your job done, go for it.
Many die on the hill of "developing something required for free with permissive licenses for recognition which will help with their future endeavors", which is the same with other creative lines of work. As a result they are milked of their knowledge and forced to bear the burden of leading the project and handling the community while companies just use what's developed while quietly but strongly nudging the project's direction for their benefit.
If the developer gets rogue, the thing is forked and sometimes closed down with no downside to the company, but the community and the developer(s) are hung to dry, conveniently signaling other developers about what they might face if they disobey their overlords with iron fists in velvet gloves as a secondary effect.
Last but not the least, many people are very ill-informed about GPL and how it works. I experience this when we discuss this with peers.
This is why I only use copyleft (or non-commercial/share-alike) licenses on what I build/produce/put out.
They mostly do not.
They only demand that you offer the source code to anyone that asks for it if you also distribute any kind of executable (you may even charge to cover the costs of the distribution).
The AGPL expands this to SaaS's too to close that loophole.