I think it's that same user who also has an incredible cover of Bohemian Rhapsody on his account. I'm going to come back to this post with more happiness, when I'm not supposed to be working.

How I pronounce "one" is virtually identical to "want" without the 't'. "Wun" for me would use the same vowel as "foot" etc. I feel like I talk about vowel sounds too much and that it's dull to everyone except me.