> What's changed recently is people launching venture-funded startups centered on gaining popularity through the appeal of FOSS with initially no clear monetization plan or one centered on selling services that were essentially just the FOSS, hosted. That’s the new thing,

That isn't new either. What has changed is some have found what looks like a path to monetization that seems like it might actually work. 20 years ago they never found a path to monetization at all. You just forgot about the other failed ones because they never went anywhere (though the source code may still be out there).