In my experience, the postal service isn't the same animal it was 5 years ago. I always sang the praises of the USPS because it was one of the best in the world, a huge feat for such a huge populous country. Send a postcard from Miami or New York to the middle of nowhere in Montana, Alaska or wherever for pennies. Just imagine that. Louis DeJoy, a man with no postal experience was appointed to be postmaster solely because of a huge donation to the Trump campaign. The result was the gutting of one of the greatest institutions in the US. It had been operating on a shoestring for decades since congress legislated that it be completely self-funded including fully funding pensions. No other government agency was so burdened. Then DeJoy eliminated all overtime and sold off high speed sorting equipment. One immediate effect was huge delays in the delivery process. You can research it. Millions of day-old chicks died stranded on docks. I could no longer get overnight shipping anywhere no matter how much I paid. At that time, I quit shipping chicks and only shipped eggs which then took 1 to 3 days longer than previously.
I'm holding out hope this will improve since DeJoy resigned in March. It will take a long time to rebuild the agency.
In the old days, a letter from anywhere in the country would usually arrive at my house in 2 days.
A case in point, I'm now waiting for a check that was mailed 10 days ago. Hopefully it will arrive today. A delay like that had never happened in my previous 70+ years.
The old joke of "the checks in the mail" became a reality.