I tried the Arc browser again for a few days this week.
It's a great browser and overall a very polished product.
But... and this is a very I'm weird but.
There's something about the feeling for me of being more in control with Safari. It just works better with my brain.
It's almost like it scrolls better and feels smoother.
There's still nothing better for doing dev work than Chrome but for general browsing Safari is king.