My question is why use Safari, other than it being preinstalled? It feels barebones. There must be some reason most Mac users are go out of their way to avoid Safari. ~70% of Mac users use chrome or chromium browsers, versus only 19% who use safari, and 3% who still use firefox [I searched "mac browser market share" and clicked the first link]. My guess is it's the lack of good extensions. People spend a lot of time in the browser, so lack of customizability is frustrating.

Because it’s barebones. Most of the time I’m on my Mac I use “regular” apps; I never really used web apps much (on my Mac nor on my OpenBSD/linux machines)

People use it for the google account integration. Logged in to all services, all history/bookmarks/tabs/passwords syncs over.

I guess that makes sense. Safari iCloud integration is super convenient for syncing everything to my phone etc.

history/bookmarks/tabs/passwords is easily synced via Safari > File > Import From > Google Chrome/Firefox and safari can log into google accounts just as easily as chrome can.

Yes, but normies won't do that. You don't even need to export, the new browser can usually import with the starting wizard.

Why would you use either of those when there’s Firefox?