iPhone 16 pro max won’t connect to IMac

My iPhone 16 pro Max will not connect to my IMac or laptop that are both running Ventura 17.2. I have tried many different cables and it will only buzz and make the charging sound when connected. It does not appear on the side of the folders tab or in iPhotos. I want to back up my photos before I delete them off my phone as I am running out of space on my phone.

I have read plenty of other threads and I can’t workout what is wrong.

any help will be grateful.