Don't let 'Spirit of Francis' mislead you – Pope is all about the Gospel
After the Second Vatican Council ended in 1965, Catholics saw some dramatic changes in the life of the church. For example, there was a new appreciation of religious freedom, a heightened recognition that the State and the church are separate and autonomous institutions, a more ecumenical outlook, a greater appreciation for the role of the laity and so on.
But something called 'the spirit of Vatican II' was constantly invoked by many Catholics, priests and religious included, to justify or to try and promote changes to Catholic teaching and practice that were never mandated by the council at all.
In particular, there was the insistent claim that the council, or rather 'the spirit of the council', had authorised changes to the moral teachings of the church, not least in the sexual sphere.