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Back fifteen years ago IE held back the web because web developers had to cater to its outdated technology stack. “Best viewed with IE” and all that. But do you ever see a “Best viewed with Safari” notice? No, you don’t. Another browser takes that special place in web developers’ hearts and minds.
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https://www.quirksmode.org/blog/archives/2021/08/breaking_th...
Yes, Safari is not exactly like IE because IE had a dominant user share once upon a time.
We don't see "best viewed in Safari", but we do see plenty of sites that can be viewed in Safari, despite the extra effort used to get them there. And I'm not even a regular chrome user.
The absolute vast majority of web sites require no effort to "get there".
The absolute vast majority of those which don't work in Safari use Chrome-only non-standards.
And there is a tiny minority of sites that run into some Safari-specific quirks