No. From the Catechism of the Catholic Church:
819 "Furthermore, many elements of sanctification and of truth" are found outside the visible confines of the Catholic Church: "the written Word of God; the life of grace; faith, hope, and charity, with the other interior gifts of the Holy Spirit, as well as visible elements." Christ's Spirit uses these Churches and ecclesial communities as means of salvation, whose power derives from the fullness of grace and truth that Christ has entrusted to the Catholic Church. All these blessings come from Christ and lead to him, and are in themselves calls to "Catholic unity."
That came about in the sixties with Vatican II, didn’t it?
Prior to that point, Catholics were forbidden to even read the Protestant Bible. Catholics were forbidden to express support for religious freedom, speaking specifically of John Courtney Murray, that being the most high profile instance in the modern era, but there were certainly others. Those Christians outside the Catholic church were deemed heretic and unsaved.
While it does my heart good to see you guys embracing religious freedom, since it’s better late than never even if it was two centuries overdue (and it was), invariably the same individuals rail against Vatican II which brought this about.
Quite the twist some Catholics find themselves in, I’d say.