Glabella
This is not the case, as long as the guest mode is turned off, there will be two masters using two devices to the same Seestar. Instead, with guest mode turned on, all devices connected to the same Seestar after that will be guests (up to 7, 8 in total including the master), except the first one connected to the Seestar.
And please note that this is a feature that is already available now not a requirement.
