That chart is median wages, so it's more middle-heavy.

Looks like bottom 25% still saw real wage growth since pre-covid, but not as much. Says non-supervisory and production worker wages increased faster than the overall median in the last 12 months though: https://home.treasury.gov/news/featured-stories/the-purchasing-power-of-american-households

I really only know lower-middle-class (family) and and upper-middle-class people (professional acquaintances). The lower-middle-class people I know do seem to be doing better since pre-covid (some had their unions negotiate decent wage increases, some got promotions into superivisory roles, some switched jobs with a big pay bump). The upper-middle-class people I know are doing much better, until maybe recently (some have been laid-off, but they may still come back on top).

I do not currently know anybody with 2 jobs. I know people who work lots of overtime to increase their income though. I'm not saying the poor and lower-middle-class shouldn't be making more money, I'm just saying they're doing a bit better, on average. Real wages have not been stagnating or declining like they have in many long periods in the past.