How do I cancel a Paramount plus subscription within Apple TV

• If you subscribed through Apple, then you can cancel through Apple, on any of your devices with the matching Apple ID account. If you want to cancel a subscription from Apple - Apple Support. The subscription should be listed in your subscriptions overview. Select the subscription, then click Cancel, then confirm. On the Apple TV box (4th generation or later): Settings﹥Users and Accounts﹥[You]﹥Subscriptions﹥
• If you subscribed directly with P+, then you have to cancel through them.
• If you subscribed through a third party (e.g. Amazon), then cancel there.

What is your model Apple TV? Identify your Apple TV model - Apple Support

or what is your model device with the Apple TV app or Paramount+ app?