Google obviously has to gain by doing that, but not as much as Microsoft had. I mean, IE could run basically on one platform, which was Windows, so it makes sense Microsoft forced people to create dependency on IE.
I'm more concerned about Apple nowadays, they're doing everything to keep people locked down on their own ecosystem.
It's not obvious to me, Google has everything to gain by going evil. Google has power to choose how privacy will be managed, they can choose to kill Facebook(not that I'm fan of FB, but still).
Apple makes a lot of money but Apple is an underdog with it's tiny market share. Apple can and does evil stuff but it's nothing compared to the potential of Google.
What you fear from Google it's what Apple's already doing. With their new iOS 15 privacy settings they are hurting Facebook (and other companies that rely on your data pretty bad). I mean, I don't feel sorry for Facebook or whatever company profits from your private data, but you can see how damage Apple can already do.
I'm more concerned about Apple nowadays, they're doing everything to keep people locked down on their own ecosystem.