@KFHC CNBC Europe is only available on Sky and Freesat.
If you're looking at the US page to get information that's why it says it's on Peacock. In the US, Peacock is a paid for streaming service like Now.
In the UK we don't have Peacock, but Now shows their content integrated into the Now service.
Looking at the CNBC app on the play store, it looks like you can watch a live stream on a mobile device or Android TV.