FFI Difference between buffer and pointer

I’ve been using interchangeably

Deno.UnsafePointer.of(new Uint8Array())

Deno.UnsafePointer.of(new Uint8Array())

with type

pointer

pointer

and

new Uint8Array()

new Uint8Array()

with type buffer. Is there any major difference? Per se I don’t use

char[]

char[]

arrays, just pointers.