Clarify comments

YoutubeExplode/Videos/VideoController.cs

@@ -47,13 +47,15 @@ public async ValueTask<PlayerResponse> GetPlayerResponseAsync(
         CancellationToken cancellationToken = default
     )
     {
-        // The most optimal client to impersonate is the Android client, because
-        // it doesn't require signature deciphering (for both normal and n-parameter signatures).
-        // However, the regular Android client has a limitation, preventing it from downloading
-        // multiple streams from the same manifest (or the same stream multiple times).
-        // As a workaround, we're using ANDROID_TESTSUITE which appears to offer the same
-        // functionality, but doesn't impose the aforementioned limitation.
+        // The most optimal client to impersonate is any mobile client, because they
+        // don't require signature deciphering (for both normal and n-parameter signatures).
+        // However, we can't use the ANDROID client because it has a limitation, preventing it
+        // from downloading multiple streams from the same manifest (or the same stream multiple times).
         // https://github.com/Tyrrrz/YoutubeExplode/issues/705
+        // Previously, we were using ANDROID_TESTSUITE as a workaround, which appeared to offer the same
+        // functionality, but without the aforementioned limitation. However, YouTube discontinued this
+        // client, so now we have to use IOS instead.
+        // https://github.com/Tyrrrz/YoutubeExplode/issues/817
         using var request = new HttpRequestMessage(
             HttpMethod.Post,
             "https://www.youtube.com/youtubei/v1/player"