It seems that that aspects of the menus, home screen, and specifically the UI seem to have not been updated from the Switch 1 as they’re extremely low res and look bad. Main things that stand out are the Drive signatures, Hero profile pics and character select screens. Very blurry.
When I played OW on the PS4 Pro, the menu and UI specifically were rendered in 4k while the rest of the game was in 1080p so there’s really no reason for this not to be the case on Switch 2 since it’s significantly more powerful than the PS4 Pro.