How can I get Now Playing out if the dock of my Apple Watch? It just keeps coming in a bunch of times?

Hi

In addition to any apps that you have added to the Dock permanently, if they do not already include Now Playing, then it is normal for the Now Playing app to also be shown automatically in the Dock, as and when appropriate - and it cannot be removed in the same way as any apps that you have added permanently.

Now Playing is shown automatically when you watch or listen to supported media on your Apple Watch or iPhone.

More information:

Switch between apps using the Dock on your Apple Watch - Apple Support

Under watchOS 4.x, the Now Playing app is also configured by default to be shown automatically on Apple Watch upon raising your wrist when playing supported media on your iPhone (and for a short time afterwards).

To turn this feature off, if desired:

On your iPhone, in the Watch app, go to: My Watch (tab) > General > Wake Screen > turn off Auto-Launch Audio Apps.

Now playing cannot be turned off using the suggested sequence.

My Watch (tab) > General > Wake Screen > turn off Auto-Launch.

Any time I open Workouts or Strava on my watch, "now playing" pops up. This happens whether or not I have music opened on my iPhone.