I got away from Chrome years ago when Edge became a thing. But now I switched to Firefox last month because Edge on Android wouldn't block most ads anymore and you couldn't sideload plugins anymore either (to get Ublock). Firefox allowing most plugins on Android is awesome and I'm sticking with that for now.
Checked out Waterfox on my Mac, but it doesn't have the fast right click Ask Gemini feature which I kind of grown accustomed to. However on mobile I am now switching to Waterfox because it has the ability to change the color of the browser and I see no downsides as it syncs with Firefox.
As for the privacy thing, Edge, Chrome and all those already do that. So I ain't worried. I just browse a few popular sites that no one give a shit about anyways. Banking at most, but I don't think that's going to be part of the data they're getting. Now the idea of them saying they promise and then they took it away is the bullshit part.