The Supershieldz Matte Screen Protectors are really bad. The fit and feel is great, but they are so grainy it ruins the beautiful displays. Not recommended. : r/surfaceduo
Best screen protector to cover scratches? : r/AppleWatch
Best Phone Screen Protectors 2021: InvisibleShield, Casetify, AmFilm – Rolling Stone
ELECOM Pencil-Feel Screen Protector Designed for Drawing, Anti-Glare Scratch-Resistant Bubble-Free, Compatible with 12.9" iPad Pro 2018/2020 (TB-A18LFLAPLL-W)
Model 3 Screen Protector Comparison: Clear vs. Matte Anti-Glare : r/teslamotors