Covid has in many ways changed the world, and in most of those ways not for the better.

First, with shutdowns of non essential things it disturbed distribution and manufacturing channels, causing shortages and rises in shipping costs.

Also due to shutdowns or from people just not going out (the data shows people did a pseudo self quarantine before the shutdowns happened) lots of small businesses closed or have heavily scaled down, causing a lot of economic loss and reducing the flow of money. There were also a lot of layoffs of hospitality workers, after being laid off and treated poorly a lot don't want to go back to that, some took this time to learn how to code or take classes, so they are even less likely to go back.

Then with the distinction between essential and non-essential workers, most of the essential workers were treated poorly, for little increase of benefit, and often with a risk to themselves. This is especially true when considering how the mask mandates has blatantly shown who is enough of an asshole to not wear a mask, and said assholes now feel entitled enough to be more vocal. Retail(and most what are considered essential jobs) already sucked dealing with the public, it's been a shitshow the last year and a half.

Second, due to all of this economic loss inflation has gotten weird, where a TV costs about the same, but food, rent, school and other essentials are like 30-40% more. But due to the weirdness some experts will claim there isn't inflation, while the majority of people, especially poor people will explain how they get less for their money now.

Third, work from home workers (who are mostly middle to upper class workers) don't want to lose that, especially those who are still worried about Covid and have taken their kids out of school (schools have done a poor job of adapting as well, but that was maybe unavoidable). Until school gets worked out, childcare isn't functioning properly and so workers don't want to return to working in the office.

Fourth, people that actually followed the shutdown got used to doing more homebody kinds of entertainment, they don't go out to eat as much, they don't go to the theater, a lot of them ended up saving money by chilling out or changing hobbies(keep in mind Covid is still a problem, in fact it's likely worse than it's been so many of these are still doing this). This was especially true of those who were going through unemployment, they stretched their dollar, some double income households had one parent become a stay at home parent instead of paying for childcare which ended up being a similar income once it was balanced out.

But on the whole, people felt mistreated by working conditions but it was normal, not that the normal has been broken people are less willing to be treated that way, because a pittance of an income (like working fast food) isn't actually enough to live off of anymore (if it ever was, but it's worth less now due to inflation). People are unwilling to work for what isn't enough to survive, especially when treated poorly while doing that, especially while they are being told that they are essential but treated as disposable. Of course they wouldn't want to do that kind of work.