(non-farm) Labor productivity declined by 5.2% year over year:
https://www.bls.gov/news.release/prod2.t02.htm
If you break these numbers down, you see that total production increased by 1.2%, but it required 7.4% more labor to produce that extra 1.2%. Compensation went up around 3% but of course in real terms it declined -- it pretty much has to decline if you need more labor to produce the same amount of stuff.
Whether or not this is a trend or some weird pandemic related thing will be seen over time.
I would argue that just based on the technological progress total average productivity per person should go up.
In certain situations, when an economy is mismanaged, it will go down for prolonged periods of time, but again one year changes are not a significant trend. But this article about worker pay and inflation is not about long term trends, but recent (since 2020) trends.
Regarding your question there is a simple explenation. YES we are much much productive then before. BUT wages are decided by markets. No one is paying you your "fair" share if it is possible to hire someone cheaper. Its like a commodity in the end. Good devs or spezialized doctors get a very very good sallary, so it just depends on your "market value".