It's not impossible that this is part of the reason.
But the most common answer given to the question of "why does it seem like there are suddenly so many gay/trans people?" is the graph that shows the "rate of left-handedness by year of birth" that sharply spikes and plateaus after what is apparently a cultural shift in schools to accept left-handed people as they are rather than force them to write right-handed (typically https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.c... from https://www.researchgate.net/publication/241783005_The_histo...).
That doesn't explain why the increase in people presenting to gender identity clinics is skewed heavily towards female teenagers though. There's something else going on too.
But the most common answer given to the question of "why does it seem like there are suddenly so many gay/trans people?" is the graph that shows the "rate of left-handedness by year of birth" that sharply spikes and plateaus after what is apparently a cultural shift in schools to accept left-handed people as they are rather than force them to write right-handed (typically https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.c... from https://www.researchgate.net/publication/241783005_The_histo...).