If you want to take photos with the 108MP camera on the Galaxy S20 Ultra you've got to specifically jump into the settings and choose that option. This is different altogether than using the 100X Space Zoom. Take a look at this video from CNET's Jessica Dolcourt where she compares taking 108MP photos and cropping them vs. using the 100X Space Zoom:
(jump to 2:27)
She makes a good point about the usefulness of 8K video as well. Not many devices have 8K screens so it may seem useless to record in 8K, but it grants you the opportunity to zoom into that footage in post production without losing detail.
My favorite quote from the video (4:25):
"In the past couple of days I've taken an uncomfortable number of selfies" lol
(jump to 2:27)
She makes a good point about the usefulness of 8K video as well. Not many devices have 8K screens so it may seem useless to record in 8K, but it grants you the opportunity to zoom into that footage in post production without losing detail.
My favorite quote from the video (4:25):
"In the past couple of days I've taken an uncomfortable number of selfies" lol