After opening the clip application, click the icon to start creation. Check the video to edit and click Add. Click to select the video below. Select the anti-shake icon. Set the anti-shake mode, and then click OK.

Click Select Video, slide the menu below to the left, and you will see the "Anti-shake" button on the right.

I hope my answer can help you. Thank you!

The video jumps because the number of frames in the video deviates from the number of stitches you want to reduce. It is recommended to fix the number of frames before editing.