Lots of companies use open source code but don't actually require any changes to be made. A lot of industry standard open source software requires no code modif

Lots of companies use open source code but don't actually require any changes to be made. A lot of industry standard open source software requires no code modification of the source for the vast majority of applications. Examples being Nginx, Python, Apache Web Server, Tomcat, pretty much any enterprise level application. So many people use it that for the 99%, the code already exists, with 99% of the use cases being heavily tested. Now they could be donating some amount of money, but that's in no way required.