I think they are redesigning bill splitting at the moment which will allow you to all pay different amounts, seen screenshots on another thread recently.
Maybe one of the leaders would know the relevant link and post in here.
With Monzo at the min, if i pay for lets say Nandos for a few people and it comes to £80 so I split the bill to £20 per person, they send me the money through Monzo.me, however, it still says I’ve spent £80 on eating out even though I’ve not as I’ve actually only spent £20 on food.
Think that’s hopefully a better way of explaining it!