In Banky's comparison data, when you see a product's minimum or fees shown as 'zero', it means the bank has not published that information, not that the minimum or the fees are actually zero. Treat it as 'not published'.
What settles it is the product's key-facts statement: banks must list every fee and how often it is charged, and the minimum to open. Ask the bank for it, or ask two clear questions: how much do I need to open? Which fees will be deducted, and when?
If you have heard of campaigns for opening accounts without fees or without a minimum, those were initiatives for limited periods, not a standing rule, so confirm with the bank when you open.
By the same logic, any condition that does not appear in the data should not be taken as absent; treat it as needing the bank's confirmation before you decide.