I can only speak for the US, but our electric grids and production are supposed to be air gapped for critical infrastructure. Healthcare? I doubt it based on the continuous leaks there - and medical supply chains are tightly integrated with internet/cloud... Shopping still has a fairly sizeable local accessibility for staple items, certainly food distro where the internet wouldn't matter for at least a short while, but it's also tightly integrated for Supply Chain Management, much like Health care - so there could be a run on it.

I'm not sure on public transport, but most are goverment led, so probably air gapped.

There's also a shitton of dark fiber laying about. Internet infrastructure COULD be brought back up depending on the damage that triggered outages in the first place.