I am not aware of any Discord application list as we have for Facebook for example. I just checked this and could not find one either.
Means, you need to find a manual way based on URL host or destination IP property. Do you know if Discord Chat has a specific URL like https://www.discordapp.com/chat? Because then you could create a rule like:
URL.Host equals "www.discordapp.com" AND URL.Path equals "/chat" AND Authentication.Username is in list <Discord chat allowed users>, Action: Stop Rule Set
Some websites share a list of their services + URL hosts + IP addresses and ports online (e.g. Microsoft) which can then be used for proxy bypasses.
Regards, Marcel Kutrieba Technical Support Engineer
If you find this post useful, Please give it a Kudos! Also, Please don't forget to select "Accept as a solution" if this reply resolves your query!
Don't forget, when your helpful posts earn a kudos or get accepted as a solution you can unlock perks and badges. Those aren't the only badges, either. How many can you collect? Click here to learn more.
Community Help Hub
New to the forums or need help finding your way around the forums? There's a whole hub of community resources to help you.