Is "Praise the virtues of your dead" a wisdom or a Sunnah, and is a wife entitled to mention the misdeeds of her deceased husband on the pretext that he used to commit haram acts?

The hadith "Mention the good qualities of your dead" is weak, but it is legislated to invoke mercy upon the deceased who died upon Islam, to seek forgiveness for them, and not to mention their mistakes. In the hadith: "Do not revile the dead, for they have gone on to what they have sent forth." Furthermore, reviling the dead harms the living, as the Prophet, peace and blessings be upon him, said: "Do not revile our dead, for you would harm the living thereby." Therefore, the mother should invoke mercy upon her husband. And if she has a right against him, she must be appeased and asked for forgiveness. If the right is financial, it must be settled.