I have a MacBook Air 2020 m1, is there a way to access boot camp or anyway I can install windows ?

You can’t use windows on a M1 Mac unless you use something like parallels. Parallels works for very basic tasks, but if you need windows, you should get an intel Mac or a pc instead.

Parallels won't install on an Air because it requires a discrete GPU which the Air doesn't have. I don't know know what you mean by "Parallels only works for very basic tasks" - I play Windows games running Windows via Parallels,