POS is a different kind of surface from the other 12: it's staff-facing, not shopper-facing. An eligible offer appears as a tile inside the Shopify POS app for the staff member running the sale, accepted with a single tap, rather than as a storefront element a shopper browses to on their own.
It's also the most minimal context by a wide margin — standard behavior only, no auto-add, swap, mix & match, or popup; no cart-total or product-page Smart Rules; no display, layout, or translation settings in this version. The one targeting dimension unique to this surface is retail location, which scopes an offer to specific physical stores rather than being available storewide the way other contexts default to.
If you're evaluating whether this surface fits a retail-plus-online store, treat the above as a technical description of what's configured, not a confirmation that this is a generally available, supported feature — that's worth checking directly before committing to it.