I have the 12.9" M2 iPad Pro. After watching your video I have 0 interest in the Samsung tablet.
I don't like the screen aspect ratio for the Samsung. It looks like it's designed to primarily operate with the keyboard like a laptop.
You use the keyboard with your iPad; 98%. You have little experience using the Pencil. Occasionally you grab it to draw some lines.
I don't use a keyboard. I use the Pencil for almost everything. Editing, picking, writing, scrolling, screen shots, using apps,...swipe keyboard is much better using the Pencil to choose letters.
It's quite obvious the Samsung doesn't have Hover. Hover is great on my iPad.
FaceID is much better than finger print.
The most significant complaint I have using the Pencil+iPad is it should be much easier to switch between small and full size keyboard. If I touch the screen with my finger it should open the large keyboard. If I touch the screen with the Pencil the small keyboard opens.
If you need a keyboard and mouse for extended typing on the iPad use continuity.