Your link doesn’t support your claim. Most of those seem closer to the OSI definition (BSD is the first one, GPL, Linux, etc) and the ones that might contradict

Your link doesn’t support your claim. Most of those seem closer to the OSI definition (BSD is the first one, GPL, Linux, etc) and the ones that might contradict it are rarer. The way most people have been using “open source” is a lot closer to OSI than these companies are claiming. It’s misleading to use a different definition nowadays. And I think that’s the actual intent. If it wasn’t, then they’d be perfectly fine with using another unambiguous term like “source available.” If there was a strong desire to be clear and not misleading, they’d use such a term.