I see a number of reports regarding slow delivery times from Amazon.
My personal experience is the opposite: times were heavily impacted peak-COVID, but now are returning to the very fast times, and are often same-day (!) or next-day delivery.
The only times I see times being pushed back now is when they ship by UPS via a program where UPS takes it from Amazon and gives it to the USPS for last-mile. These can take 4-5 days.
But if Amazon's delivery drivers are handling it, which is most of the time for me, it's very fast.
This isn't meant to invalidate others' experiences. But I wonder what the difference is. My experience is in an urban area.