My tab S8 ultra keyboard cover is equiped with magnet to store the s-pen, so i think magnet shouldn't cause an interference, but it's official case from Samsung. I hope UAG works fine, i want magsafe feature for my S23 ultra.
I've got the Metropolis, pathfinder and monarch. I can confirm they are all rubbish. The magnet is so week. I tried to use it on a magsafe car charger and it falls of with the smallest bump
Good content. As for the UAG cases and I have the monarch for my note20 ultra. I kept it in my drawer. It's a nice case, but there's just not enough lip protection as to say like the supcase unicorn beetle pro or the poetic spartan or the I-Blason Armorbox or the otterbox defender pro. These are the cases I use for my s23 ultra. Great lip and camera protection, and there all Grippier? Then, the UAG MONARCH OR PATHFINDER.