Why does everyone always forget about Safari in these discussions?
Safari has a respectable marketshare on mobile / tablets. Not as good on desktop but it’s not a lost cause.
It's not a relevant browser. The last time I have seen Safari installed on a Windows machine was likely 2013-14, if not earlier. It doesn't have an Android version (which makes it less relevant on smartphones). It doesn't support Linux, which lots of the power user/tech trailblazer crowd is using. It's not open source, unlike Firefox or Chromium. It lags in features (which to be fair, isn't bad when they impact privacy).
I don't think there's a good case to be made for Safari outside of Apple devices.
Those things don't matter. Just by existing Safari is making sure web developers can't solely focus on Chromium. If we disregard mobile, Safari still has more marketshare on desktop than Firefox.
> Apple's offering, Safari, currently holds 18.34% of the internet browser market, with an
estimated 844 million people using it in 2021. Safari also makes up 23.78% of all
mobile device browsers worldwide, which is high considering Apple holds 26.35% of the
mobile vendor market. https://backlinko.com/browser-market-share
I think the other thing that makes it less relevant is that Safari is using WebKit and at this point its just a WebKit derivative. Part of the value that Firefox provides for better or worse is alternate components that force things to actually try and meet standards.
I've never seen Safari on an Android or Windows device. I would imagine this is on the list of things that is technically possible, but not a real world use case.