You asked about Bunq originally. Bunq is TINY in the context of banking. The Dutch DGS has enough cash to cover all of their covered deposits if needed. AIB has 20 times as much customer deposits as Bunq - if Bunq failed, the other Dutch banks would be asked to stump up what would be effectively loose change for a couple of years to rebuild the DGS fund.Then what is the point of the DSG in the case of a big bank like AIB?
By the way the Dutch one specifically says money under 100k is guaranteed - poor choice of words ?
In the context of AIB, the DGS fund is not really important at all; its a final backstop after everything else has failed, which would never be allowed to happen. The entire regulatory system across Europe is designed so that a DGS should never be triggered for a systemically important bank. Brendan has copied a post to the first post on this thread that explains how bail-in works. What is important is that 100k of your deposit balance is "covered", and therefore can't be touched until everything else has been burned. That's why DGS funds only need 1% to 2% of their covered deposits to be funded - by design it will only be used by the smallest of credit institutions.
Although not in the EU, what happened with Credit Suisse is an indication of the powers and approach of regulators if there's a sniff of a problem at a bank the size of AIB.
In Ireland the DGS has been called on 5 times for credit unions. DGSs have been called on several times across Europe, especially last year as a number of small banks with Russian connections failed following sanctions being imposed.