Easily solved by having every team member mount a whiteboard behind their work area. I do that and often whiteboard solutions on video chat.
Over the years I’ve done it a variety of ways. Currently using a small 3 foot by 2 foot wall mounted ikea whiteboard. In college I bought whiteboard tiles and double sided taped them to the wall to make a whole wall a whiteboard... I’ve had tiny 2x1s... never had a room, apartment or house since high school without a whiteboard...
We’re engineers and designers... we can do hard things.