For the last item, personal accounts (only?) default to send and receive video at lower resolution (360p). So if you meant that the quality is lower, you can set it on both sides to 720p.
Edit: I don’t think Meet remembers those settings though, so you have to do it every time (and show your family members how to do so).
As a legacy free GApps user it is even more confusing because the admin page gives me an option to default to higher quality video but that doesn't do anything.
Why does Google, with all the resources at its disposal, choose to cheap out like this when competitors in the video chat space (from tiny startups to gigantic corporation of similar size) have offered near native resolution video chat for ages?
Are they even _trying_ to compete?