I used to have this fitted to my old S20 Ultra, but quickly realised it affected the camera lens focusing and a very faint tinge, so I removed it after a week and just stuck it on a mobile stand.
I have tried a few times to remove it and failed, so today used brute force and a knife, even then it only came off in small pieces.
Maybe worrying if say it gets scratched and you decide to replace it on the mobile, would cause serious damage.
Regards Obsydian - (Car & Tech Evangelist)
MY DEVICES: ZFold4, Watch6 Classic, Book2 Pro i5 5G [Laptop], Buds Pro2, M70A 32 & 43”; [Monitor], Smart Tags, Dell Inspiron G5 [Laptop] / FAMILY DEVICES: ZFlip3, ZFlip4, ZFlip5, Watch6 Classic, S8 Ultra; S7+ [Tablet], Buds Pro, iPhone 12, iPad Air 2, Air tags, iPad Mini 5, iPad Pro 12.9 GEN2 [Tablets] / HOME DEVICES: QN95A [TV], Q900A / SWA900S [Soundbar, Rears], MC28M6075 and MC32K7055 [Microwave], Jet 75 Complete (Vacuum), Samsung Level [Speaker]