Apple Air 4th Generation Screen Protector

Do not get a screen protector that is tinted.

There are too many to recommend, if you go with a glass screen protector, get one that is as thin as possible to minimise any touch issues and Apple Pencil.

Other screen protectors are thin, clear plastic film screen protectors, that protect the iPad's screen from any scratching, but are not for protection against screen cracking.

Best of Luck to You!

Yes.

If anything some screen protectors have some negative affects when using an Apple Pencil IF they are too thick, like too thick glass screen protectors.

So, you need to be careful what screen protectors you decide to use on your iPad.

Best of Luck to You!