Add VoiceChannel and Thread to isinstance checks

discord/ext/commands/core.py

@@ -2317,7 +2317,9 @@ def is_nsfw() -> Check[Any]:
 
     def pred(ctx: Context[BotT]) -> bool:
         ch = ctx.channel
-        if ctx.guild is None or (isinstance(ch, (discord.TextChannel, discord.Thread)) and ch.is_nsfw()):
+        if ctx.guild is None or (
+            isinstance(ch, (discord.TextChannel, discord.Thread, discord.VoiceChannel)) and ch.is_nsfw()
+        ):
             return True
         raise NSFWChannelRequired(ch)  # type: ignore
 

discord/state.py

@@ -1485,7 +1485,7 @@ class ConnectionState:
         self.dispatch('raw_typing', raw)
 
     def _get_reaction_user(self, channel: MessageableChannel, user_id: int) -> Optional[Union[User, Member]]:
-        if isinstance(channel, TextChannel):
+        if isinstance(channel, (TextChannel, Thread, VoiceChannel)):
             return channel.guild.get_member(user_id)
         return self.get_user(user_id)