Are you keeping an eye on your constituency in the Exit Poll? Massive changes in Surrey for Example. Esher and Epsom & Ewell both changing hands - from Tory to Lib Dem. Reigate remaining blue.
Note how, overall, Labour are winning this grand majority on a smaller share of the vote than Theresa May when she LOST her majority in 2017. It is the splintering of the non Labour vote that is handing Starmer this big majority.
In fact - and we'll await the final numbers - Labour's share of the vote may even be lower than Jeremy Corbyn's share of the vote in 2017 - when Labour actually came second.