Have other users on Catalina 10.15.7 found that the Kindle app no longer downloads?

Please make clear. The post here is in High Sierra Forum but the issue is about Catalina. Is Catalina the macOS on the computer where Kindle App is installed?

If we are talking about Catalina then make certain the Kindle App is a 64 bit application. Catalina ONLY Supports 64 bit applications. If the App is 32 bit - it will not work. Check with the Developer if they have a 64 bit version

Hello and welcome to Apple Support Communities, hypnomedium.

If we understand your post correctly, you are unable to download an app on macOS Catalina. We’d like to help.

Follow the steps in this article:

If you can’t download or update apps on your iPhone or other Apple device

Let us know if that resolves this issue for you. 

Thanks for using the Apple Support Communities. Take care.

No, you did not understand the question, she's saying Kindle will no longer download books into the Kindle app, not that Kindle app (the program) doesn't download. Your help is worthless as ever.........