I think there are a fair few in the public sector posting pro Labour and Starmer. Their positivity re Labour is not surprising but that doesn't reflect many people who have been hit by poor policies.
As for a release valve as claimed in pp I think things tend to snow ball more these days. Headlines pick it up, polls fall, PMQs happen, a bit like party gate but in the opposite direction
I doubt this is the lowest point. I'm interested to see where things go in about a year when a budget can't tax more again nor borrow more but growth has stalled.
Plus the channel issue which will get greater pressure including from France