I'm not expecting much to be banned or censored, per se, but I can see more GOP-controlled states removing a lot of LGBT books and other media from schools.
In general, education in the US is left to the states, which means I'd mainly just expect a continuation of the trend we've been seeing for a few years now in places like Florida and Tennessee of removing queer books from schools.
From the federal perspective, I'd also anticipate the possibility of FAFSA being gutted and making higher ed inaccessible to more students. If this sort of content is not covered in public schools, there will be fewer opportunities to study queer literature later on. And even then, state universities in red states are subject to the same restrictions as their public schools, so those students may be SOL unless they have the means to study out of state.
The main problem is: even if the material remains pretty freely available outside of schools, how do you make the people who would benefit from it the most feel driven to seek it out independently?