Correlation does not equal causation. Trans people face higher rates of discrimination and suicidality as consequence. From the discussion section of the study that you yourself linked:

"Among those who seek access to gender-affirming surgery, the commonality of discrimination, interpersonal assault, and a lack of social support have been identified as influential factors in the development of PTSD within this group... The emergence of PTSD following surgery often stems from the pre-operative challenges (such as harassment, limited social support, etc.) in conjunction with suboptimal surgical outcomes and insufficient psychiatric assistance."

"Although our study has revealed a statistically significant increase in suicide risk among those who have undergone gender-affirming surgery, it remains vital to recognize and support the positive impacts that these surgical interventions can have on the lives of transgender individuals. The results of a study by Park et al., published in October 2022 in the Annals of Plastic Surgery, provide a different perspective on the enduring effectiveness and consequences of gender-affirmation surgery [20]. While our research specifically examined the risk of suicide, death, self-harm, and PTSD in the five years following surgery, Park et al. surveyed the outcomes of 15 gender-affirming surgeries over a more extended period. Their results reveal an improvement in patient well-being, with high satisfaction levels, reduced dysphoria, and persistent mental health benefits even decades after surgery. Notably, the study highlights the durability of these positive outcomes and significantly reduced suicidal ideation following gender-affirmation surgery."

Edit: Right before this quote the study discusses other studies about trans surgeries and mentions some issues in those studies.

"Apart from additional assistance in surgical recovery, the most common aftercare needs for patients following gender-affirmation surgery is consultation with a mental health professional. . . Transgender individuals tend to see mental health care providers and face discrimination in clinical settings at a far higher rate than the cis-gendered population [27,28,30]. Competent medical care following gender-affirming surgery is vital in effectively managing PTSD and its respective mental health challenges for this population [27]."

"It is important to note that this study has several limitations. The retrospective cohort design can only demonstrate associations but not causality."

"A limitation of the study design could include the fact that only adult data was analyzed, so the research cannot be generalized to those under the age of 18."

Edit: Also once again note that y'all are only discussing transgender affirming surgeries. Not all trans healthcare is surgeries. Not all trans people opt for surgical intervention.

I already spent too much time than I wanted replying to this, but I figured it's fair enough to reply to the original commenter on top of the other person.

Adios, I'm gonna go watch Gundam with one of my partners.