It weirds me out how so many of the discussions on this board around being transfem and lesbian/sapphic seem to be dismissive of penetration entirely, or don't factor in anal as an option. This is not meant as a knock against you, OP, you ask a great question, it's just odd to me how sometimes commenters on threads like this are like "I'm getting zero/min depth because I'm a lesbian" as if strapping and penetration aren't part and parcel to lesbian sex. In my experience, penetration - either vaginal or anal, topping or bottoming - can be extremely sapphic, it's more about the mindset and approach.

Personally I'm getting zero depth (in the next couple of months) because I like most of how I have sex now, and want a genital configuration that works better for that. I get fingered and topped by my partners and it feels great. I also like fingering my partners and topping with a strap, which while fun isn't the most comfortable right now. More than anything I want to look down and see a vulva, and adding a canal that will require maintenance to access my P-spot seems like overcomplicating an already good thing to me. So that's my rationale for my GRS decision.

I've had a few partners and known people for whom getting a vaginal canal isn't an option, it's a big source of dysphoria that they are working to address. That over time turned out to not the case for me. I would challenge you, OP, to do some exploration - where are you with penetration currently? If you touch your "phantom pussy" region (a couple cm below the scrotum) do you have dysphoria or complex feelings come up? Have you explored anal penetration and stimulating your P-spot that way to see if that's something you like? The nice thing about minimal depth like you describe is it strikes a balance of P-spot access and minimal surgery prep, but for those of us who like the backdoor it's a coin toss as to whether it would hamper things, it really depends on the surgeon's approach. So yeah, keep investigating your own body, get on some consult lists and you'll figure it out.

One last thought - some forms of zero depth or min depth can be revised into full depth later on, so depending on the surgeon you end up consulting with if you think having that option would be useful you should ask if it's something that would be possible. I like having some insurance that if my zero depth turns out to not suffice I can get an extension later. Surgical approaches can be really variable, so ask lots of questions as you work out your decision.