Weird that they managed it virtually everywhere in China
Schools in China were not all doing live lessons at all.
Many were not doing live Zoom (or other) lessons, throughout the whole thing.
The teachers I know working in Chinese schools were doing video lessons, but not live lessons - just like my school, state primary in England, did, and are doing, from day 1. We actually had one of our ex teachers give us lots of advise before we locked down so we were ready to go just about, though it did happen quicker than we'd planned.
I suspect many posters on MN (and to be fair it is only on MN I am seeing the obsession with live lessons) have no idea what it is like to be on the receiving end of a live lesson, nor realise that an awful lot of children (and adults) in the Uk have no way to access live lessons - and in many many schools across the country, it isn't just a class bubble size.
I've done live zoom training during this time. It just isn't the same and tbh a well prepared video lesson with some form of q and a capability after would be more beneficial.
Private schools will have it easier in the sense of providing home learning to more pupils simply because of their school catchment. More money to pay for fees usually means more money to provide their children with their own device and decent wifi or data.
My school has a wide mix of families. We have families in the situation of being able to buy each of their children their own device when schools locked down to some who are relying on schools dropping off lunch and/or breakfast to them who don't have wifi at home and only have one phone on PAYG for the whole family to share.