The confusing thing to me is that I don’t know what such a dynamic is or would be or how that would differ from non-queer dynamics. Like I can see some cis-het dynamics that wouldn’t be queer, e.g., SAHM + breadwinner father type relationships don’t sound queer, but there are lots of non-queer cis-het dynamics out there, and if none of them are queer I don’t know what’s left besides superficial things like fashion subculture or other stuff that doesn’t really matter.
Kind of but with the boundary. So like averaged over all queer relationships, yes it’s on average easier, but individually and with the constraint of genetic children, they’re rarely (if ever?) more constrained than normative cis-het relationships. (Infertility complications aside for both queer and non-queer relationships.)
One assumption here is that cis-het parents want their children to be both their children, which obviously isn’t so practical for gay and lesbian couples.