Is the debt of a government bank waived for the deceased if he is unable to repay it, given that debts are paid from the Muslim treasury and because the bank is subordinate to the ولي الأمر (ruler/authority), and knowing that the deceased's family is in a poor financial state?

A Muslim must have a good intention when borrowing people's money. Whoever intends to repay his debt and then dies, Allah is his guardian. But whoever does not intend to repay it, his good deeds will be taken from him on the Day of Judgment. The hadith indicates the obligation to repay a debt for one who has money. As for one who dies owing a debt and leaves no money, the ruler (wali al-amr) pays it on his behalf from the treasury of the Muslims (Bayt al-Mal).