I have been a Prime member for many years. I've noticed that while I used to get everything in 2 days or less, now, even after the virus thing is waning, a lot

I have been a Prime member for many years. I've noticed that while I used to get everything in 2 days or less, now, even after the virus thing is waning, a lot of stuff is taking 4-5 days, though it still says it is Amazon Prime shipping. I think this is also due to cementing their monopoly power. Now that everyone is addicted to Amazon, myself included, they can use lower-cost shipping whenever they want and don't have to ship everything in 2 days, thus increase their margins.