There is a new feature for users on the Plus and Pro plans: video textures!
Video textures can be mapped on objects the same as usual image textures, they can be silent or with an audio track. You can even add transparency using chroma key effect ( aka green screen ).
Video with an audio track will require the user to press an extra play button, that’s a browser limitation: learn more.
See by yourself in augmented reality with those 2 examples: