This would be extremely useful. In many cases receipts need to be handed in on expense claims to the accounting ppl. In my case I also need to cover for the bogus exchange rates that the companies i work for often apply when I travel outside the euro zone. The account statement download + receipt in local currency cover it in one go.
Not sure were u store these notes/photographs of receipts (I assume not within Bunq space) but I guess there must be a way to connect these to each other in the download.