I absolutely loathe any browser not named Safari when using a Mac.
I don't get how people can use Chrome. It's ugly and doesn't look like a native mac app. The scrolling is crappy and not like a native mac app. Doesn't integrate with macOS trackpad gestures. Can't pinch to see all your tabs in a beautiful view like Safari. Full screen videos don't go to their own desktop space. I can't stand how videos highjack your current desktop. Awful. No iCloud syncing with your other devices. I could go on and on.
Edit: I just remembered another deal breaker. In Activity Monitor each tab shows up as it's own process with Safari so you can identify which websites use how many resources individually. Chrome just shows all tabs in once process.
Edit: Yet another deal breaker. Safari lets you three finger tap to preview a web page. I use this ALL the time. Chrome doesn't have it.