You can add apps to your Apple Watch directly through the Watch's App Store, or through your iPhone's Watch app.

You can delete apps on an Apple Watch from the app screen on the watch itself, or from the Watch app on your iPhone.

Be honest, you likely use the same few apps on your Apple Watch over and over again. For workouts, it’s likely Strava or Apple’s own Workout app. For music, it’s Apple Music or Spotify. They’re great, ...