We know a workaround you can use if your Kindle is affected
Kindle 3G internet will no longer work, globally, starting in 2022 - Good e-Reader
Older Kindles may lose internet connection, warns : r/gadgets
Some Older Kindle Devices Will Soon Go Offline: Here's Why
Why You Should Consider Upgrading Your Old Kindle
Kindle (2019) Review
Kindle Paperwhite Signature Edition (32 GB) – With a 6.8 display, wireless charging, and auto-adjusting front light – Without Lockscreen Ads + 3 Months Free Kindle Unlimited (with auto-renewal)- Black : Everything Else
changes Kindle ebook return policy, ends lending between Kindle users, and more : r/books
How to Convert a Kindle Book to a PDF
Older Kindles lose access to new ebooks, but you can get round it - Which? News
Which Kindle Is Right for You?