https://www.skyscanner.net/news/10-travel-tips-for-transgender-and-non-binary-travellers https://flip.it/gp-CMi
Passport to acceptance? LGBTQ+ travellers wary about gender-neutral IDs
https://www.newsweek.com/which-countries-recognize-third-gender-option-passports-1643167
Gender Neutral terms
“X” : US, Iceland, New Zealand, Canada, Argentina, Australia, Denmark, Iceland, Nepal and New Zealand
“T” : India
“O” : Nepal