Maybe numerically, but Chrome alone has 70% marketshare. When you consider that edge runs off of the Chrome engine, Google controls like >80% of how the world sees the web essentially.
If Chrome adds a new feature, everyone else must adapt as well.
For the average user, Chrome is just the best browser. There is nothing wrong with 70% of consumers liking them more than other browsers because the switching cost is free and there are plenty of alternatives.