Is Chrome the New IE? (2023)

Yes.

If it works on Chrome, no one cares or even tests for other things.

If there is a JS feature in Chrome they want to use, so it’s impossible to use other browsers (instead of looking wrong) people do it.

Performs fine in Chrome? Ship it.

Yes, Chrome is the new IE in that it’s the only browsers companies care about, just like IE was for a very long time.

Everything has to be Chrome compatible to succeed. That’s the benchmark, not what the spec says.

I manage websites for a couple of non-profits. A very high percentage of traffic is from Safari (mostly on iOS) -- 40% on one site. Only testing in Chrome seems like a bad idea.

It really depends on where in the world we're talking about. iOS is big in some places (like US) but insignificant in others.

iOS is important in all rich countries, and if you want to address wealthy people in developing markets. It is very important for these reasons.

In Europe Safari has decent 21%. Thus I would not neglect Apples web browser but calling it very important is going a step to far in my opinion.