How do!
Just received an email from Amazon confirming the title.
No word on other devices though.
Amazon email wrote: Dear Customer,
Amazon will no longer be supporting the Prime Video app on your Xbox 360 as of 1st November, 2021. We are continually upgrading our service and this occasionally means we can no longer support certain device models.
To help you to continue streaming your favorite content and more, we would like to offer you Fire TV 4K Stick with Alexa Voice Remote for £26.99 (£49.99 MSRP). Just plug this powerful media-streaming stick into your HDTV or 4K TV to start streaming in minutes.