Accept that students can, and will, be present in multiple spaces if they have a screen with them and find ways to create presence overlaps. This is different from simply attempting to manage their attention between room to screen.
I know people like to say Ed Tech won’t save you, and that is a good antidote to the ed tech saviour hype, but in 2020 educational technologists really did save education (by which I don’t mean silicon valley profiteers, but the small teams within unis, colleges, schools, etc). People who were often buffeted around an institution, not treated with appropriate respect and under-resourced were suddenly called upon to keep the whole thing going. That’s a hell of a spotlight shift.