I maintain a level of informality in my interactions, being unapologetically myself and expressing my opinions freely, including the use of strong language and casual tone.
It's hard for me to tell if this is a character flaw I should address. Thoughts?
nah, you do you
At the same time it feels like a strength to be headstrong in your beliefs. A lot of people are like this online, but I'm like this irl too. A lot of people are too fake in face to face interactions. But sometimes I feel like I come off too abrasive. Not a Greta first impression.
There is a fine art in meeting new people. You have to selectively reveal enough about yourself to keep the conversation going without scaring them away. Look for common interests. Keep your personal stories brief and give the other person space to talk. It sounds like you might be coming on too strong with views or intensity the other party doesn't share. If this bothers you then maybe focus on improving it.
