To developers, IE was the browser for which you had to spend hours debugging issues. Sounds like Safari to me. Considering you have to buy a whole device to use Safari, I’d argue it’s worse than IE was.
Aside from selling hackintosh computers I don’t think I’ve ever heard of Apple going after someone for running macOS on third party hardware or running it virtualized. If you try to make a business out of it they will come after you but they are going after developers.
Nowadays something like BrowserStack feels like a requirement anyways since I’ll never have all the devices I need to test.
To developers, IE was the browser for which you had to spend hours debugging issues. Sounds like Safari to me. Considering you have to buy a whole device to use Safari, I’d argue it’s worse than IE was.
(Sent from my Safari browser)