That’s the purpose: Make it increasingly hard for competitors to stay in the competition and to ensure Google stays in this dominant position. You also can’t use your Chromecast with Firefox. Another way to keep people locked in.

Same strategy Microsoft used many years ago e.g. with Office, adding more and more features in such a pace that it becomes very hard for anyone to create a competitor with the same functionality. They are still capitalizing on that.

I use Firefox for everything, works well for my purposes.