I’ve just noticed that my touchscreen is scratched, does anyone know whether these can be removed and any recommendations for screen protectors?

Depending on the screen and depth of scratch they can be removed but they do have a coating to stop bleaching. If it’s not a dual view screen you can buy just a screen but you will need the part number (not a LR one) off the screen itself which I think is a Sharp made item. Then google the pt number to see if someone like AliExpress has one. 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

They aren’t deep, ive tried toothpaste but that didn’t work and I don’t want to try anything more harsh in case I damage the screens.

I used this to polish out some scratches on my watch recently

Look into