If I were a transgender person
Thanks for "cisplaining" what a trans person would feel.
As a trans person, I would rather have a space where everyone's identities aren't questioned, than some kind of (potentially hidden) requirement to be in place that your identity has to be "real" in some way. If "normies" have trouble respecting trans people just because we also happen to respect other identities in our spaces, then shrug. If fellow trans people are uncomfortable with that, they don't have to be part of this space, either.
In the end, you're once again making this a much bigger deal than it has to be. Someone broke the explicitly written out rules and got bonked for it. And if you think this person is a troll, they sure are a good one with how much they're being fed with all these posts.
Makes me wonder if the "I got banned" posts are just a continuation of the trolling to make as much drama as possible.
Move on. There's trans people dying out there. This isn't worth fighting over.
I haven't streamed using only the Steam Deck, but I've used it as a streaming computer running both OBS and my VTubing software, since my laptop is much too weak for it. I used OBS NDI (now DistroAV) to push the video to the Steam Deck. That experience was pretty fluid, though setting it up might've been a bit involved. (Flatpak for it exists now.)