First thing. Sunak is a Tory PM. So if he says there won't be a Spring election I am preparing to be ready for late April. The golden rules are, whatever a Tory says always assume the opposite, and do not attempt to predict a Tory PM's decisions on the basis of logic and good sense.
Second thing. This general election is NOT going to be business as usual. Trust in the mass media is at an all time low. The vast majority of the electorate know they have been shafted by the government and the opposition haven't been opposing that for the last few years. Meanwhile a whole bunch of different groups are organising to stand anti-establishment candidates in a whole load of constituencies. These aren't just mad nutters like Count Binface or the CPA. These are groups containing experienced organisers and campaigners, including sitting councillors and potentially some sitting MPs (though that can't be formally confirmed yet). While there isn't a single national party left of Labour, every single leftist group has agreed to cooperate to stay out of each others way at the election and decide between them who has the best chance in each seat. That may yet be scuppered in some places by the usual big egos, but it is something that hasn't happened before. With Reform attempting to attack teh Tories from the extreme right all over the place it is all up for grabs. However the mass media narrative will remain that you all have to make a choice between Sunak and Starmer. It is nonsense. Stop listening to it. Find out what is actually going on. Get off your damn sofas, switch off the telly, find out what is going on on your patch and then get out on the street.
Finally. Despite just about every case of voter fraud outside of Northern Ireland being related to postal or proxy votes, you do not need photo ID for those. If you don't have photo ID register for a postal vote. Anyone can get one, you don't need to have a specific reason to, you just have to ask.