I thought He is mostly alpha-radiation capturing a few electrons. I.e. that it is produced by radio isotope reserves and escapes no matter what one does. And no

I thought He is mostly alpha-radiation capturing a few electrons. I.e. that it is produced by radio isotope reserves and escapes no matter what one does. And not that it was in big pockets of pre-existing gas that one is exhausting. So it may have different consequences than other resources.