[pjmlp]

Had AT&T not gotten greedy and lawsuit BSD, all the major UNIXes would be around happily taking whatever they felt like from BSD, and Linux would have stayed Linus hobby project.

You see it on FOSS OSes for IoT and embedded devices, none of them is GPL based, rather Apache or MIT.

[darkwater]

OTOH nowadays we are seeing how many Apache/MIT softwares are effectively moving to source-available, non-FOSS licenses because other companies took advantage of what Apache/MIT permit. I'm clearly not able to predict what would have happened if all those projects had used a CopyLeft license, but still one does wonder...