Why is the save cart function missing in the POS app?

Shopify has no idea how their own customers use their platform! I was forced over to Shopify because Quickbooks POS disbanded. After months of work, I got Shopify to work for our brick and mortar. A key piece to this working successfully was the saved cart feature. Now a feature that I was sold in my move to Shopify has been taken away and similar functionality is an upgrade? This change has me looking for an alternative POS system (which I should have done when Quickbooks POS died). What an idiotic change.