If you’re reading a story, choose File > Follow Channel. Or click the Share button on your Mac, in the sidebar (if you don’t see it, click in the toolbar, then choose Unfollow Channel or Unfollow Topic.
If you’re looking at the stories for, or reading a story from, a channel you want to unfollow, choose File > Unfollow Channel. Or click the Share button View or clear your reading history in News on MacSubscribe to Apple News+ in News on Mac