I get the MS Copilot hate, but Perplexity, Dia, Open AI and others are entering the AI browser space. I don't think Google and MS can just sit it out and hope AI browsers don't catch on.

At this point most of us have a ChatGPT tab (or 20) open at all times- it's more convenient just having it on the page. It's also genuinely revolutionary when integrated into things like Colab notebooks.