In an article from last year now made available online, Cardinal Robert Sarah has spoken of his support for the Traditional Latin Mass while regretting its recent suppression.
He writes:
It is profoundly to be regretted that the motu proprio Traditionis custodes (July 16, 2021) and the related Responsa ad dubia (December 4, 2021), perceived as acts of liturgical aggression by many, seem to have damaged this peace and may even pose a threat to the Church’s unity
He also comments on the popularity of the Latin Mass with young people, stating:
I also can testify to this reality from many encounters with young people― lay men and women, religious, seminarians, and priests―whose vocations in the world either to Christian marriage or to the religious or the apostolic life are grounded in and nourished by the older liturgical forms in a truly life-giving way. In this respect, I can never forget my visit to the Paris-Chartres Pentecost pilgrimage in 2018: what hope these young people give to the Church of today and of the future!
He also writes:
For those who shared neither his vision nor his openness, these were retrograde acts calling into question the Second Vatican Council and its liturgical reform.
The article contemplates the role that Cardinal Ratzinger and later Pope Benedict XVI played in the liturgy, including a late 1980s reflection on improvisations with the Novus Ordo Mass:
Instead of the developed liturgy, some have set up their self-made liturgy. They have stepped out of the living process of growing and becoming and have gone over to making. They no longer wanted to continue the organic becoming and maturing of something that had been alive down through the centuries, and instead they replaced it—according to the model of technical production—with making, the insipid product of the moment.
You can read the full article here.