It's too early in the life of this new feature introduced with dev beta 2 to glean all the functionality that is possible. This upcoming dev beta 4 on Monday (since all the seeds have been on Monday) might show some fixes/improvements to this mirroring.
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The iPhone Mirroring app in macOS Sequoia is so much better than Microsoft’s Phone Link, and it’s not even close. For Windows users, that’s a real shame.
www.digitaltrends.com
A interesting point is that the following:
IMHO this affords developers a new way to look at how their apps work on the iPhone while coding on a Mac, so the possibility of being able to see a similar resolution (PPI) representing of a iPadOS screen with mirroring using MacOS 15 does sound appealing and exciting to some of us. Although it not what some iPad users would like which is the opposite its perfectly doable IMHO with this smooth running iPhone mirroring using bluetooth paired with Wifi, however not at the same time due to the limits of networking bandwidth.