As there's currently a Queensland Supreme Court challenge to the Queensland Government's ban on puberty blockers and hormone replacement therapy (HRT) for transgender (and only transgender) youth, here is your periodic reminder, that regardless of what the media says:
Puberty blockers are not (by themselves) gender-affirming therapy.
Puberty blockers are the least-worst non-therapy proposed by transphobes as an alternative to actually effective HRT.
Granted, in some cases a young person may be on the verge of puberty, aware that something gender-related is an issue for them, uncertain precisely what this is, but also unwilling to let biological chance settle the matter for them. In those cases puberty blockers are absolutely the thing with which to purchase some time to consider the matter further.