Hero video with still image for mobile

I’m a little surprised nobody seems to be interested in this. If we use two separate hero blocs for mobile and desktop it is bad for SEO due to double header tags and remains slow loading, because the hidden content downloads in the background.

I can do this really easily in Rapidweaver using Sections Pro and we need an option that allows us to do this efficiently via the side panel or through custom classes. Any chance this could be added soon? @Norm It’s pretty straightforward with images via custom class, so should be feasible with video.