I voted around 1.30pm in Brighton & Hove, it wasn't busy at my Polling Station. The 'vibe' I'm sensing here is that the Green vote is largely holding up compared to 2019 but I think the national trend will mean enough Labour vote gains / Conservative vote losses for Labour to leapfrog the Greens in terms of seats to win a minority on the council. I feel they will fall short of a majority though.
I am incorrect if rumours circulating the local press* are anything to go by, whereby apparently the Green leader is at risk of losing his seat to Labour (which would be harbinger of a Labour majority or even landslide). The ward in question is Brunswick & Adelaide, which was voted reliably Green the last few local elections, although would almost certainly have voted Labour in recent general elections as it was in the Hove Constituency. It may well be the first ward to declare in the city.
*I would share some links but the websites are horribly cluttered with ads..