Shared whiteboards and a good audio connection are FAR more important than most videoconferencing solutions. Microsoft's Surface line kicks Apple's iPads around the block here, at least partly because the Surface "pen" has a built-in "eraser", but Apple's "pencil" doesn't. Windows Whiteboard is a pretty decent starter solution here, and runs on both Windows and iOS. Run in conjunction with Zoom or Teams, it's a pretty darn usable setup.
