And a payment service, an ad platform, a marketplace, a VR R&D company, I never used them but I guess they also have a line of business service centred on social network communication, I’m probably forgetting plenty of things.
Feels like a lot and not just three entities.
Additionally, Facebook primarily does acquisitions as a form of hiring, according to Mark Zuckerberg himself. They buy the company so they can get the employees to come and work at Facebook.
It's not like Google which has 1)Search 2)YouTube 3)Maps 4)Android 5)Chrome 6)Gmail 7)Analytics just from top of my head
Just like Google's successes, the "successes" are actually built by others (almost all you list were acquisitions), but the difference (as mentioned before) is that Google sometimes acquire products for the product itself, while Facebook generally doesn't.
https://inspirationfeed.com/what-companies-does-facebook-own...
They literally dominate the social network landscape along with Twitter. They can literally set public agenda. That's too much power.
Google? Definitely. Meta? Not really. All Meta has is two social networks and one messaging service. They haven't really experienced huge success in anything else. They MAY hit big in VR/AR space, but that's yet to be determined.