No not for all, but perhaps for more than you think. Even simple web browsing.

Are you aware of just how many resources a typical modern web page loads, and how many requests it makes? As an experiment you could try putting a half second delay on every request and see what happens to your browsing experience. It's horrible, which is why I always worry about latency. It looks like Musk is avoiding it, but it needs considering.

Part of the problem is that web designers are largely protected from the effects of slow networks and bad latency, they design as if these things don't matter. And usually they don't, but it's becoming more important because they don't realise.

I remember computing when the speed of light didn't matter. Sometimes I miss those days.

Edit: Changed "Someone's" to "Sometimes" - auto-corrupt struck again.