On the App Store the app purports to support iOS 9. They broke iOS 9 support over a month ago with a "bug fix" update. The app will no longer stream any videos on iOS 9. I was able to put the last CBS app version that worked on iOS 9 back on my iPhone, through iTunes, but after a few weeks the app told me I had to update to the latest version via the App Store in order to continue using it. The latest app version still says it supports iOS 9, but it doesnt. Apple has protocol for app developers discontinuing support for older iOS versions; making it so iOS 9 users may only use a broken version of the app is not it. This is just user-hostile.
zumo21 about Paramount+, v4.13