Here's the thkng you are missing:
Google, like Microsoft before them, pushes their own products in ways that no others are allowed to:
- Microsoft pre-bundled IE and Windows Media Player when no one else could bundle anything.
- Google pushed ads against Firefox and for Chrome on the front page of Google search (i.e. before a search was typed) something I am not aware if anyone neither humanitarian or commercial entities with the worlds largest marketing budgets being allowed to do.
For me, this example alone is enough to demonstrate behind reasonable doubt that Google, like Microsoft before them (and after them with Teams and Edge) have abused their position in one market to crush all competition in another market.
Everything else like the very convenient issues showing up in Firefox on major Google properties like Search, Calendar and YouTube is just icing on the cake.