I don't know how the scope compares to what they're doing today (there's a government ministry dedicated to LGBT rights headed by Fidel Castro's niece who's articulated that the position of the Cuban government is that homophobia, transphobia, and all forms of chauvinism are something that has to be educated away at the family and community levels), but starting in the 80s they were importing sex-ed textbooks from the GDR and consulting with GDR academics on LGBT rights and there was at least some degree of support available even in the early 80s (I remember reading that the current president of Cuba was involved in those programs in the early 80s to some extent, but that didn't provide any more details than that mention).
So at a bare minimum, the "formal government programs" were LGBT-positive sex ed classes in school and at-least tacitly approved social organizations that provided community and support to LGBT Cubans.
I don't know how the scope compares to what they're doing today (there's a government ministry dedicated to LGBT rights headed by Fidel Castro's niece who's articulated that the position of the Cuban government is that homophobia, transphobia, and all forms of chauvinism are something that has to be educated away at the family and community levels), but starting in the 80s they were importing sex-ed textbooks from the GDR and consulting with GDR academics on LGBT rights and there was at least some degree of support available even in the early 80s (I remember reading that the current president of Cuba was involved in those programs in the early 80s to some extent, but that didn't provide any more details than that mention).
So at a bare minimum, the "formal government programs" were LGBT-positive sex ed classes in school and at-least tacitly approved social organizations that provided community and support to LGBT Cubans.