Can I store my iPhone photos on iCloud and access them on my iPad without moving photos from my iPad to the iCloud?

I increased my iCloud storage to move all my iPhone photos and videos to iCloud and free up space on my phone. I don’t want to store the photos taken on my iPad to the iCloud. They are mainly screen captures and other things I don’t want to waste iCloud storage with.

However I thought I would be able to see all my iPhone pics/videos on my iPad through some iCloud Interface? Is that not true? Is the only way to do this is to enable iCloud storage on my iPad too? I thought by using the files app, I could do this but apparently it only is for non photo files unless I explicitly save a photo there.