To check the status of a collaborative playlist on Spotify, you need to follow these steps:

1. Open Spotify and log in to your account.
2. Navigate to "Your Library" or "Playlists" section.
3. Select the playlist you want to check.
4. Click on the three dots (more options) next to the Play button.
5. In the dropdown menu, look for "Collaborative Playlist". If it's marked, then the playlist is collaborative. If it's not, then it's a regular playlist.

Remember, a collaborative playlist allows other users who you've shared the playlist with to add, delete, and reorder the tracks.