Not sure about Amazon prices as did my COVID shops in the high street, but "bricks & mortar" shops I visited were charging a lot for sanitizer, disposable gloves etc. during the early days of COVID especially. Whether gouging was by the shops or the suppliers (doing classic ramp up prices when demand outstrips supply) I have no idea.
A housebound (due to health reasons) relative of mine did tell me that stuff she used to buy on Amazon (disposable gloves) was for a while unavailable as all the stocks of brands she normally purchased were reserved for NHS purchase only. She did say there were some gloves available (I'm guessing they were 3rd part sellers, affiliates, whatever the Amazon terminology is) and they were lots more expensive than her normal ones... She basically went through her order history, found that all gloves she had in her history were NHS only and so then searched Amazon for alternatives.