There are several ways you can cut or edit video content on your phone. Here are a few options:

Use a video editing app: There are many video editing apps available for download on the App Store or Google Play Store that allow you to trim, split, and merge video clips. Some popular options include iMovie, Adobe Premiere Rush, and FilmoraGo.
Use the native video editor on your phone: Many smartphones come with a built-in video editor that allows you to trim and split video clips. To access this feature, simply open the video in the Photos app and tap the Edit button.
Use a third-party video editing website: If you prefer to do your editing on a computer, you can use a website like WeVideo or Clipchamp to edit your video. Simply upload the video to the website and use the online tools to make your edits.
Regardless of which method you choose, be sure to save your edited video in a format that is compatible with your phone. Some common video formats for phones include MP4, MOV, and AVI.