I would agree that it's brand isn't a browser, considering most people have never heard of it. Makes me wonder what they could do if they actually advertised it.
I consider Chrome primitive because it lacks vertical tabs (kinda necessary with >10 tabs open at once). You can't even get workable vertical tabs with an extension on Chrome!
Tabs work very well in Firefox for me. I have 17083 tabs open at the moment, on my 2013 Macbook Pro, still going strong.
The Containers are great for separation of concerns and for multiple accounts like work vs personal, business shopping vs personal shopping, etc.
I tried Safari for a while but switched back to Firefox. I use Ungoogled Chromium occasionally to generate PDF invoices and have used it for a better Google Hangouts experience, but otherwise rarely open it