iPad Pro 2021 display issues: Is Mini LED an upgrade or downgrade?

Shadow effect at edges, blooming, HDR. The Liquid Retina XDR display is a mixed bag for me. iPadOS tested v14.5.1 00:00 - Intro 01:32 - Shadow effect at edges 03:07 - Gap with the laminated display 03:55 - HDR, if any 10:04 - Blooming effect