Perhaps people have had to expend more energy just keeping their personal life together in the last few years. People with children have had to deal with the constant school closings, childcare facility closings, etc. and that has taken its toll. They may have family members who got Covid or had treatment for other ailments delayed by the pandemic's rush to treat Covid patients. They could've experienced a huge shift…
Not sure if you're in a customer facing job, but I've personally noticed that there seem to be noticeably fewer Karens now compared to pre-pandemic levels. (There was a spike during the first lockdown, but that died down within a few months.)
Everyone seems to be used to random disruptions now, and I think all of the campaigns about retail worker abuse have really made customers stop and think.