There's some qualitative data about bi people not being welcome in services tending to gay or lesbian communities, but that's a thorny subject. Overall, there just isn't good, detailed research into LGBTQ homelessness. This is a good summary of what's missing: 2/

Is LGBT homelessness different? Reviewing the relationship between LGBT identity and homelessness

This article explores existing evidence concerning the causes and experience of homelessness among lesbian, gay, bisexual and trans (LGBT) people. A total of 88 sources, published after 2000, were ...

IIRC, @urbaneprofessor.bsky.social is researching this very issue