Blur moving faces easy tut

[PoisonedSlice]

You should be able to use motion tracking.

Motion Tracker Video Filter

This is required to use motion tracking. It only does the preview and analysis and is not intended to include effects but rather drive other video filters… See the Load Keyframes from Motion Tracker button in the following video filters: Corner Pin Crop: Rectangle GPS Text Mask: Simple Shape Size, Position & Rotate Size & Position (GPU) Spot Remover Text: Rich Text: Simple Timer Notes This filter first appeared in version 23.05.14. The Motion Tracker can be on a different clip than the clip…

Here is a video giving instructions on how to do what you asked:

Shotcut Tutorial: How To Track And Blur A Moving Face Or Object.