Ruling on leading of the prayer by one who cannot recite al-Fatihah well

He decided (and formed the intention) to carry on praying on his own because the sound of the imam’s voice was cut off, then the sound was restored, and he found that he had gone ahead of his imam in the prayer. What is the ruling?

Ruling on praying behind someone who promotes democracy and secularism

Should they pray behind someone who says that Allah is everywhere?

Can Women Pray ‘Eid Prayer at Home?

Following the imam with regard to doing or omitting recommended actions in the prayer

Praying behind someone who writes amulets

Is the wife’s prayer valid if she prays on her own in front of her husband or next to him when he is praying?

Is exaggerating in beautifying the voice when leading people in prayer regarded as showing off?

Is the prayer of the person praying behind the imam rendered invalid if the imam’s prayer becomes invalid?