My understanding is as follows: "Meet (original)" app is soon to be dead. Full interoperable Meet protocol support is being added to the old Duo (now called M

My understanding is as follows: "Meet (original)" app is soon to be dead. Full interoperable Meet protocol support is being added to the old Duo (now called Meet). The original app is merely being kept around while the new duo roles out, and until they are sure that all relevant features have been added to the new app. Once this is all accomplished they plan to add a nag message to the old Meet app to convince people to move to the Duo based Meet app. If your family gets prompted to use Meet (original), it probably means they have received the recent update to the old meet app, but have not yet gotten the update to the old Duo app. It sounds like Google is doing phased rollout of the updates.