I think a lot of people took covid as an opportunity to retire and will not come back which is reflected by low labor participation numbers. Unemployment is basically the same as it was pre-pandemic.
We are in a strong labor market in the sense that demand continues to outstrip supply (although this is weakening for higher paid workers in the top ~10-20%) but there has been a negative shock to supply from covid.
And U6 unemployment is raising, suer U3 is not, but U3 is a terrible statistic in the first place.
Anyone saying the job market is "robust" is cherry-picking data