In "another strange guy goes trad Catholic" news

Slate reports that Shia LaBeouf has said he is converting to Catholicism - and that it is in large part because of attraction to the Latin mass.

The article gives a fair summary of the reputation of the Latin mass for attracting Right wing reactionaries:

The traditional Latin Mass is at the center of an ongoing controversy in the Catholic church: the small, conservative group promoting it claims it is a beautiful and true expression of the faith, while more progressive Catholics—and Pope Francis—see it largely as a breeding ground for reactionary beliefs and conflict in the church. The TLM, as it’s called by those who celebrate it, refers to the “extraordinary form” of the Roman rite that makes up the rituals and prayers of the Mass and which was in use until the 1960s, at which point the Second Vatican Council took place and ushered in the “ordinary form” (Novus Ordo, or NO).

The overwhelming majority of Catholics attend Novus Ordo Masses; indeed, the overwhelming majority of Catholics today have likely never seen anything else. But traditional Latin Masses have a small but highly enthusiastic faction in the church. The main difference between the two rites is in style and not substance: In the extraordinary form, priests recite prayers in Latin instead of the vernacular; they celebrate the Mass facing the altar, with their backs to the congregants; there are no female altar servers. Proponents of the TLM describe it as solemn, beautiful, ancient, mysterious, sacred. Traditionalists believe that the Latin Mass is key to reviving the faith among young Catholics....

There’s certainly nothing wrong with enjoying the Latin Mass. (With the caveat that some traditionalist groups, such as the semi-legitimate Society of Saint Pius X, incorporate fully outdated parts of the pre-Vatican II liturgy into their worship, which can include explicitly anti-Semitic elements.) In the interview, LaBeouf explained that he was drawn to the Latin Mass because it was “immersive” and felt “almost like I’m being let in on something very special.” Fair enough!

But the traditionalists who love the TLM can be deeply toxic. “Trads” embrace traditionalism that goes beyond the language spoken in services. Many of them reject the reforms of Vatican II altogether, and stick to uncompromising positions on gay marriage, divorce, and the dress of women and their role in society. Their extreme counterparts, the radical traditionalists, or “Rad Trads,” often go further, idolizing the crusades, making vile comments about Jews and Muslims, and spreading conspiracy theories that decry the infiltration of the church by evil forces and accuse Pope Francis of being an antipope or even antichrist. The Rad Trad community flourishes on Twitter and Reddit and Discord, trafficking in memes about the saints and feminists and monarchism.

These highly engaged traditionalists may be small in number (most Catholics are blissfully unaware of the “liturgy wars,” as this debate is called). But they are well represented among clergy, including bishops and cardinals. And over the course of Francis’ papacy, their dissent has grown increasingly loud, to the point that many liberal Catholics began to worry that the culture wars in the church would lead to schism. The controversy came to a climax last summer when, in an effort to crack down on the “division” sown by the traditionalists, Pope Francis laid down strict rules for when and where the traditional Latin Mass can be conducted. The outcry that followed was intense. Pope Francis has not backed down from his position; In June, he said that those who “call themselves guardians of traditions, but of dead traditions” were “dangerous” to the church. Traditionalist Catholics have continued to claim to be martyrs.

And here's the biggest danger sign that LaBeouf is going "Rad Trad":

There’s another reason it seems LaBeouf knows exactly what side he’s taking: he told the interviewer that he had sought guidance from Mel Gibson in his conversion process. Gibson is not just an unabashed anti-Semite; he is also someone who speaks at traditionalist Catholic events, builds churches for disaffected orthodox Catholics, and makes friends with radical right-wing priests. (His father, Hutton Gibson, was a leading proponent of the idea that all popes since Vatican II have been antipopes.) In fact, in the interview, LaBeouf said that Gibson was the one who had shown him where to find the illicit Latin Masses.