Hypothesis to test -
Both main parties have alienated a large section of their support so that there are going to be a lot more people who are uncertain how they are going to vote or if they are going to vote at all. Plainly the Tories are doing particularly badly at the present, but we should see a disproportionate boost to the smaller parties - Greens, Libdems, Brexit, SNP and Plaid combined with a general decrease in turn outs.
I think this is what most people on here, myself included, expect to see. But I'm not sure we're seeing it exactly. To play devil's advocate - maybe the centrists/Labour right are right. Maybe Starmer had a sound strategy all along and keeping quiet and waiting for the Tories to self-immolate and then forming a "progressive alliance" to tactically vote them out of power. Maybe we're not seeing general dissatisfaction but a long lasting switch of voters away from the Tories as happened in the 90's.
I don't think we can say yet. You could read North Shropshire either way and the current polling may or may not last if the Tories change leadership. Time will tell.