In practice AGPL might achieve that. It does allow commercial use, but a lot of big businesses, especially big tech, will not use it. On the other hand it is a clear, OSI approved, FOSS license.

Well, the language is clear enough. What's not clear are the implications of the language. And, honestly, the sensible default for a lot of companies is just not to go there. And big companies tend not to operate on hopes and prayers to avoid distracting and expensive lawsuits. Without going into details I have enough familiarity with the space to know that a lot of open source-friendly companies either avoid AGPL entirely or discourage its use.