is there evidence that puberty blockers work? IIRC the original report is the only one that reported an effect and subsequent studies done more carefully show no net effect more than potential selection bias and plenty of physiological repercussions
anecdotally, my trans friends who took puberty blockers and eventually started hormones are happier for it, and my trans friend who was sent to conversion therapy jumped in front of a train (and lived, and is well now).
the literature is relatively sparse on puberty blockers, though. i found a review [0] which is inconclusive, but points to better psychosocial outcomes at the expensive of factors such as bone density and emotional stability.
i do think it's crucial to point out that the dichotomy is not "puberty blockers vs. nothing", but "puberty blockers vs. gender dysphoria". i recently read a piece about the extremely poor treatment of an SRS patient, who reflected 10 years later and claimed she'd still go through the treatment to have had the surgery, as she would likely not be here otherwise. the description of the surgery frankly made me dizzy with unease (and i work in the surgical OR). it's a sensation i imagine is not at all unfamiliar to trans people. as i understand it, they are born with this unwanted operation performed in advance, and live through this, and eventually an unwanted puberty.
the issue is then, how do we alleviate this? conversion therapy is conclusively, not an answer. puberty blockers are inconclusive, from what i understand, but the research which has been performed points to lower suicide attempt rates among trans kids.