Don't open source operating systems have the same problem? It's legally and technically possible to fix or improve the system, but you may not have the skill or

Don't open source operating systems have the same problem? It's legally and technically possible to fix or improve the system, but you may not have the skill or time. You also have to convince the maintainers to accept your patch and wait for your users to upgrade. No matter what system you write for, you have to work with what you've got. All open source lets you do is fork it and distribute your own version of the OS.