An idea I've seen floated is that during the pandemic a lot of people got a lot of support from the government and under Biden a lot of that was phased out.

So even if "the economy is doing fine" there would have a been a large number of people who would have had something taken away.

People got a glimpse of a more interventionist social democratic government during the pandemic and then it disappeared. So yea for people who benefited from that absolutely everything got worse after.