its interesting that people want links to open on the default which is fine but the use case for me is that i have one mac machine and i have two desktops. one for work apps and one for personal apps. when i am on my work desktop i see slack and my work profile on chrome. i do most of my work on gsuite there and so any links i open on my work slack opens there.
then i swipe over to my desktop 2 which is all my personal apps and my personal chrome profile. i click on chrome to check my personal gmail. then i check discord and someone sent me a funny youtube video. i want that link to open on my personal chrome.
i also have a personal slack channel and i click on a URL there and it will open on my personal chrome because that was the last profile that was active.
its basically the only feature that keeps me on chrome at the moment. maybe its very niche... but its something that I've found difficult to step away from chrome for.