Such an interesting discussion on Lingthusiasm #90, What visualizing our vowels tells us about who we are, especially:

vowel spaces are linked to other aspects of our identities … as well as gender and sexuality.

… cis straight men tend to have vowels that are all more towards the centre of the vowel space. Everybody else – so cis, straight women, gay men, lesbians, trans people of all genders, nonbinary people – use way more of the vowel space.

48 minutes. Transcript.