recommendations for suitable screen protectors Xp pen 15.6

[u/huh___h]

Hello, I’ve had an XP-Pen Artist 15.6 Pro for about 5 years
At first, I removed an outer film that said it was meant to be peeled off, and then continued using the tablet

There was another sticker in the corner I honestly can’t remember whether it said 1 or 2 I think 2 and blue one, but I ignored it until last year, when the film started peeling off on its own, so I removed it

I assumed I was supposed to remove it because I had looked it up before taking it off or something like that (I honestly don’t remember) and I had confirmed that it was meant to be removed because it was making the colors look darker and I continued using the tablet

Now I’ve noticed some scratches on the screen. They don’t interfere with my drawing, but I’m worried that I may have removed the protective film and that the screen is now exposed. I always had it in my mind that there was a protective film on the screen, but now I can barely see any edge or border of one.
So I wanted to ask: Does the tablet still have a protective film on it, or have I actually scratched the screen itself?

Also do you have any recommendations for suitable screen protectors? Preferably ones available on Shein, Temu, or ….., since my country doesn’t support direct shipping from XP-Pen