Unfortunately, there is limited research on the prevalence of gambling addiction among the LGBTQIA+ community. However, the information that is available does suggest that there is a correlation between problem gambling and those who identify as gay, bisexual, and transgender.
To discover the findings from a US 2006 study, link to this recently published article at https://fingerlakes1.com/2021/06/10/problem-gambling-and-pride-month/