I'm not going to get into this further other than to say there is plenty of evidence out there that is not at all hard to find, if you care to look, that is not just biased reporters. The facts are out there. And I'm not saying the whole of USPS slowed down their service. I am saying it was a top down initiative, and it is documented by those who implemented it. You'll have to read between the lines here because if I go any further in explaining, I'd be getting political and that isn't allowed here.
Last thing I'll say, and I've said it before in this thread, in my area we had sorting machines removed for no reason. Hiring and overtime freezes. All this during a pandemic, the holiday season, and a mail in election? Any numskull could have predicted this would be a horrible time to do these things. I wonder why they were done?
Edit: I'll just drop this wikipedia link. Looks like someone put a lot of this together in one place!
https://en.wikipedia.org/wiki/2020_United_States_Postal_Service_crisis