Well said.

Jesus said, John 20:29 (RSVCE): 29 Jesus said to him, “Have you believed because you have seen me? Blessed are those who have not seen and yet believe.”

He acknowledged that those who followed would be making an act of faith, and that the knowledge would not be absolute.

As to what the Church officially teaches on the future of non-believers, it is a complicated subject not lent to easy understanding in short form posts, and not what is commonly understood. The tl;dr as best as I can dare to attempt to summarize complex theology, is hell is reserved for those who, in full knowledge and assent of mind, choose to live in mortal sin.

This has been interpreted various ways. Many hold that by not being convinced of the teachings truthfulness, you are not in full knowledge, and not mortally sinning in rejection.

It is worth pointing out that the church never officially condemns anyone to hell, as that is between them and God, and the catechism specifically mentions several other faiths as clearly having a different path to God, however mysterious that may appear to us.

Christians who claim to know the mind of God with any certainty, claim a bit too much in my humble opinion.