Sexualized feminization currently exists in-game, and chastity and sex toys are both planned.
And "normal trans acceptance stuff but with an added layer of 'sexual'" is DEFINITELY a big theme of my game - although I plan to intentionally leave it up to the player whether the protagonist is specifically labeled as "trans" or not. :)
The "obtaining an ideally girlish body" is done by some sort of reality-warping-magic-sci-fi-shenanigans in my game, rather than the tropes you listed, but I think there's still a comparison to be made there.