Stand by for a long detour but this is detail I know and I want it on the record because it matters to me. If you’re less interested, jump to the last paragraph.
Transgender voice work (and more recently, non binary voice work) is typically an aspect of speech and language therapy, done by qualified SALTs who have postgraduate training in voice. Speech therapy for stroke survivors is usually done by SALTs who specialise in neurology rehab, and the most likely cause of ‘not having a voice’ in that case will in fact be aphasia, or a problem using language. However, if the stroke affects the function of the voice box (which can sometimes happen) the survivor will probably be referred in to a SALT voice therapist or ideally into voice clinic (joint clinic between ENT and SALT).
Transgender voice is officially a core part of NHS commissioned services, and has been since about the early 2000s. In reality, a lot of NHS teams are closed to new referrals because there is minimal clinical risk to not doing the work (no symptoms likely to deteriorate, no additional cancer risk, no swallowing risk, the voice itself is unimpaired). Also there are increasing online resources, self-help voice networks, private SALT services and non-SALT voice therapists (may have a background in performance or singing for example). There certainly used to be SALTs attached to the regional gender clinics including the Charing Cross gender service which was the first in the UK, but I don’t know the current provision there.
Transgender voice, from a practical point of view, can be extremely hard work for the patient with lots of appointments, often group appointments, and if the person is motivated and has the mental resources to tackle it, it can be very effective. I would argue, however, that all that is nothing compared to the effort required by stroke survivors with aphasia, who often can and do go back to work because they need to, like anyone else, with a particularly complex new disability for which they may well require workplace adjustments, including reduced hours or periods of sick leave, for which they get less pay or sickness management, like anyone else…?