Update: I'm no developer but I just tried it by broadly disabling the check for a Fire TV in app/src/main/java/org/schabi/newpipe/settings/NewPipeSettings.java

[anarchize01]

          Update: I'm no developer but I just tried it by broadly disabling the check for a Fire TV in app/src/main/java/org/schabi/newpipe/settings/NewPipeSettings.java

    public static boolean useStorageAccessFramework(final Context context) {
        // There's a FireOS bug which prevents SAF open/close dialogs from being confirmed with a
        // remote (see #6455).
        if (DeviceUtils.isFireTv()) {
            return false; -> return true;
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            return true;
        }

Now SAF is enforced and the import works without an issue. :)

As feared, I couldn't browse directories in the file open dialogue, however thankfully the first time I tried it, it opened in the recent section and so I could easily pick the file. (The second time I tried it, it opened in the Download directory where I also had that same NewPipeData.zip file).

Maybe this Fire TV check should be refined and limited to pre-Android 10?

Originally posted by @k9janer in TeamNewPipe/NewPipe#10643 (comment)

[opusforlife2]

Wrong repo.