Is it permissible to perform Friday Prayer behind an Imam who does not proclaim the word of truth, knowing that all mosques are in this state?

It is permissible to pray behind the aforementioned Imam, as the rule is that whoever's prayer is valid for himself, the prayer of the people behind him is also valid. A group of the Companions prayed behind those who shed blood and committed major sins, such as Ibn Umar's prayer behind Al-Hajjaj, and Ibn Mas'ud's prayer behind Uqbah ibn Abi Mu'ayt, who used to drink alcohol. It has not been reported from any of them that they repeated the prayer or refrained from it.