Giving the title of the Fifth Rightly Guided Caliph to 'Umar ibn 'Abd al-'Aziz

The questioner:
Honorable Shaykh, may Allah grant you success, does 'Umar ibn 'Abd al-'Aziz (may Allah have mercy on him) deserve the title of the Fifth Rightly Guided Caliph, and is it not applied to Mu'awiyah? Or is the title limited to "Caliph" only for 'Umar ibn 'Abd al-'Aziz?

The Shaykh:
'Umar ibn 'Abd al-'Aziz (may Allah have mercy on him) is undoubtedly a just, pious caliph, and people loved him for his faith and truthfulness (may Allah be pleased with him) and his scrupulousness. However, he is not included among the Rightly Guided Caliphs, nor even among the Companions. Mu'awiyah is better than 'Umar ibn 'Abd al-'Aziz without a doubt, because Mu'awiyah was a Companion, and no one is included among the Companions. 'Umar ibn 'Abd al-'Aziz came later, and he was a righteous man who struggled in the path of Allah and was pious and ordinary; there is no doubt about that. But no matter who he was, he is not included among the Companions; he is not included among the Companions.