Is this transphobic?

I got approached by a former friend who said “fuck you” and then proceeded to insult some other friends and then gave me a link to voice training and said I needed that. Now it was over text so idk how they said it but I’d imagine it was in a condescending mocking angry tone. They were pissed at me for something… Anyway, they blocked me after so I couldn’t respond.

That was a while ago but I’m really dysphoric thinking about it…