Like @moriond I see this as an addition to your personal item, either as an organiser inside of it, or worn separately. Usually at the gate, if they don't like the way your bags are organised (e.g. you have 3 and they only allow 1 or 2) you can condense them and be allowed on. In my experience when this has been a small cross-body clutch like item (around the same size as the PIKA, though horizontal), they've done no more than give it a glance!