I have a split-brain on the matter.

I trust Amazon to the extent that I am okay with them storing my card information. Their security practices in that regard are pretty damn good. (I do not trust Google with my payment card info. I do not want them to have anything on file they could trigger charges against, either by accident or through their many dark patterns.)

I do not trust Amazon when it comes to vendor or marketplace management. They have an enormous fake review problem, and the probability for counterfeits is, in some categories, unacceptably high.

Meaning: I don't buy any big ticket items from them. I'm still happily doing mostly recurring purchases from Amazon, for product categories where the chance of getting mislabelled junk is practically zero.