That being said, I also don't think the browser "duopoly" is as entrenched as market share suggests. As Chromium is open source, the cost to the consumer of switching browsers is minimal; Chrome, Edge, Brave, Vivaldi, Opera and un-googled Chromium all offer very similar browsing experiences and the main difference is small UI things. If Google does something anti-consumer, people can jump ship very easily. Other corporations can also fork Chromium very easily (as some have already done).
That being said, I also don't think the browser "duopoly" is as entrenched as market share suggests. As Chromium is open source, the cost to the consumer of switching browsers is minimal; Chrome, Edge, Brave, Vivaldi, Opera and un-googled Chromium all offer very similar browsing experiences and the main difference is small UI things. If Google does something anti-consumer, people can jump ship very easily. Other corporations can also fork Chromium very easily (as some have already done).