This is another thing that is, well, fucked up. It's a hassle, if you look at it that way. (could loop back to SNAP here.)
I peel and grate potatoes for hash browns. Literally, laying them out on towels to get the moisture out. Spending a 'minute' or two, come back for a second, and they are ready.
BUT.
You can season at that point.
If you have the space you can shape them, air sealed, and stack in the freezer. It's just a hot skillet and flipping once.