Important to note there are options.
I've been relatively pleased with the duckduckgo mobile browser. There are a reasonable amount of chromium forks that aim for privacy oriented browsing as well, although I don't have a specific one to endorse.
I guess in defense of Mozilla: it isn't really playing a different game in the browser space, they're just trying to mitigate some of the toxicity of ad revenue as a foundation. They're still a non profit hiring from the same pool as the tech industry money printing machine.
There's still a limited pool of support they have to pull from, and I like it better with them around so the big 3 don't have a total monopoly on browser architecture.
That said it's maybe the best example the model is flawed at the jump.
The fediverse in general is the literal manifest of the means of production owned by the producers. Every denizen can see just about every post.
You would be hard pressed to not find the socialist ethos at play anywhere on the fediverse, not just Lemmy. And really that's part of what gets hashed out here by broader adoption is just how ground level that gets.
The weird part is that whatever they think of dictators, they would know the model, and that gives me a bizarre amount of trust.