Getting repeat notices about new device connected for the first time (Wife's phone)

I'm getting many emails and notices lately pertaining to my wife's phone saying that it's "connecting to the network for the first time". Today I even got one when she was at work, nowhere near home!

I always get this, (below) but the phone name always has a different number after it, besides the -20 seen here: (Sometimes -61 or -70)

A new device connected to your home network for the first time.

Details on the newly-connected device:

Name:  Debra-S-S25-Ultra-20

Brand:  Unknown

Type:    UNKNOWN

Model: Unknown

OS:       Unknown

Over the years, I would occasionally get a message like this, but lately, it's been fairly frequent and always pertains to her Samsung S25 Galaxy Ultra.

Is there a way to stop getting these notices?