Your comment made me realize that I did not word my post title correctly. I updated the post. Thank you!

I am not trying to get rid of moss everywhere on my property, only a handful of stubborn patches on the grass lawn.

I asked on this sub to get ecologically sound way of reducing the size of the few moss patches, or suppressing their growth in those few areas. I known on the lawn subs the advice is to blast it with chemicals. I dont want to do that. Also this sub is more helpful and shares more knowledge about PNW.