
Bro don’t tell anyone your deadname. It’s not ur name and if u don’t want to be called it then it’s not their business to know. We learned in kindergarten to call others what they want to be called. If they keep asking for your deadname tell them a fake one and don’t talk to them again…
Otherwise you can never truly bet on people being okay or not. T4T isn’t always a solution either, I have met many transphobic trans people in my lifetime because everyone is still people and they think what they want. So in my opinion it doesn’t matter trans or cis or anything else, u have to check if they are a good person first.