What's the definition of "operating system provider" The binary distribution operating systems provided by so-called "tech" companies all suck anyway I prefer

What's the definition of "operating system provider" The binary distribution operating systems provided by so-called "tech" companies all suck anyway I prefer to compile the operating system from source. I can add or remove any code I want. Will the nonprofit open source projects distributing the source code that I use be "operating system providers" under this legislation. That would seem pointless