Backup/Transfer all iPhone 11 data when screen is water damaged?

Hi,

Water damaged iPhone 11 Pro Max and whilst waiting for a replacement I’m using a spare iPhone 7, unfortunately the latest backup is from over a year ago.

The damaged 11 Pro Max’s screen won’t turn on - initially the phone was working but with no display, now I’m not sure if it works at all. When plugging into Mac, neither iTunes nor Finder show the device connected.

Is there any way I can backup the 11 as-is, or transfer everything to the 7? Or is all data from the past year a lost cause and I need to move on?