I live in London and know quite a few families who are probably making something like £150k-£250k who have been sending their DC to state primaries. Many of them either intend to or already have sent DC to private secondaries, but were quite happy with the good state primaries their DC got places at. When the lockdown first started, several of them actually gloated that the people who sent their DC to private primaries were going to waste their money, that there was no way that online provision could justify the summer term's fees. They have since changed their minds.
The gloaters were correct that private school parents got much less than they expected for their money. No access to the expensive grounds, facilities and activities. Less curriculum beyond the core. A new requirement to help their DC access the live lessons online.
But what was also true is that the difference between what parents in most private primaries around here received and what they received in state primaries actually got bigger. This was not just in terms of education, but also in terms of childcare: nearly all of them ended up working from home and keeping one eye on a 7 year to make sure they're still connected to their class is less time-consuming and distracting than taking care of the 7 year old for the entire school day.
Perhaps 20% of people in London could afford to send their children to private primaries without making massive sacrifices. Only about 5% did. Many of the rest are now thinking it over.