I feel so silly for asking this but it’s difficult to tell. I just bought a new monitor (KOORUI 25E3A) and i’m unsure if this is just a plastic sheet to protect from scratches in shipping or a protective film meant to stay in the monitor to reduce glare or whatever
havnt fussed with it yet. a couple of the other monitors i’ve bought have come with a plastic sheet on the screen or around the edge but it not sure about this one.
It doesn’t look like its meant to be removed, my guess is it’s an anti-glare film. Pick it it gently with your fingernail and if it lifts easily go for it, if not just leave it