Here’s a couple pretty good lists of all the executive orders and legislation Biden has passed during his first term that has explicitly strengthened anti-discrimination laws against LGBTQ, provided funding, initiated lawsuits against anti-LGBTQ laws and initiatives, reversed the ban on transgender military, and other stuff:

https://www.hrc.org/resources/president-bidens-pro-lgbtq-timeline

https://www.americanprogress.org/article/timeline-biden-administrations-efforts-support-lgbtq-equality-first-100-days/

Oh Kamala Harris marched at a pride recent in 2021, I didn’t know that.