While it's taken Android some time, on newer APIs the system will simply prevent an app from requesting permissions if a user has denied it more than once. From https://developer.android.com/training/permissions/requestin...:

"At the same time, your app should respect the user's decision to deny a permission. Starting in Android 11 (API level 30), if the user taps Deny for a specific permission more than once during your app's lifetime of installation on a device, the user doesn't see the system permissions dialog if your app requests that permission again."