Once I installed Ark on another computer after logging in it merged my pro and personal sessions. It seems it could be prevented and rather a default behavior is not acceptable to in my opinion. I will give it another try only after it will be able to gain meaningful market share.

Most the useful features I was able to replicate in Edge with setting or plugins. Not perfect but acceptable. I am afraid to become “The best” you need more than navigation and hot keys improvements. Other browsers will be able to close those gaps, especially knowing the fact they all of them are Chromium-based.