A pitch of 175 Hz and upward is ok. 200 Hz is great, 220 Hz is considered an "average female pitch", which is of course ideal, but by far not needed. Many TG speech therapists rather aim towards a lower female voice at about 180 Hz, because it is far easier on the voice. The higher the voice is forced, the more strain this causes. A good speech therapist will thus rather aim at a pitch at the lower half of the female voice spectrum and focus intensely on the resonance, intonation and voice melody. If your voice is already at 180-200 Hz, I would not focus much more on pitch but rather on other parameters if your voice is still gendered male.
I had voice surgery and it got me from a speaking vice of 120-150 Hz in the range of 170-200 Hz and I have not yet been misgendered. One person phoning me about voice surgery even claimed my voice sounds like that of a younger woman while in reality I am over 40. So its not needed to push pitch beyond 200 Hz.