I'll just watch even fewer things on Prime, I guess. Everything about the UI and watching experience seems worse than Netflix, but then ... that's been worsening recently as well in ways I can't quantify.
Why won't I leave Prime (yet)? Because I have an "Amazon" visa credit card, with an admittedly serious 5% permanent discount on all purchases from Amazon (as well as companies they own, such as Whole Foods.) I won't stop purchasing products through Prime just yet; am simply careful to avoid anything that looks problematic, price-gouged, or needing aftersale support, and the discount lock-in is too attractive to me to ignore for now. But video? I can always find it elsewhere. Same goes for "FreeVee" because "Free with ads" isn't free.
So if Prime is failing you in other ways, don't feel like you need to keep it to keep your discount.
However, I'm seriously reconsidering my choices. Almost my entire family is in the Apple ecosystem and we recently purchased an Apple TV device to replace a FireTV, and I must say that it is a much better experience. And iCloud is a better photo/video sharing platform for us than Prime Photos ever was. Really, the only thing keeping me subscribed to Prime is the cash-back program.
As for Prime Video, it has always been the most crappy of the video streaming options. It's always frustrating when the things that I want to watch are not included with Prime and require a purchase or rental. And now that there are ads and lower quality, the chance that I'll watch anything on that platform is steadily declining.
The thing is I live less than 3 hours from a big warehouse (people who live in the same ZIP code as one of those warehouses often get 5-day shipping) but it seems that the residents of Upstate New York and New England are frequently treated as unpeople when it comes to facilities and infrastructure.