Either way, I will never tip a retail worker. I don't even tip for counter service at restaurants. I an exception to that policy during covid lockdowns, but once places opened up to indoor dining/shopping/drinking that's when my tips ended. If you aren't waiting on my table, refilling my drinks, checking in to make sure I have everything I need etc. no tips for you, and even that I only do begrudgingly. I've been to places where tipping isn't even a thing in restaurants and I loved it.
If apple grants them this request and they put out the tip jar, I hope customers just laugh while they press the "NO TIP" button at checkout.