The company I work for has always been hybrid, nothing really changed after.
Face time for promotion? Not if your manager don’t come to the office either!
They tend to be there enough. :)
People really don’t care who you are, people don’t sit in the same place like before, and introverts don’t go around and introduce themselves during the office days.
I don't find this to be true in my experience. People don't care who you are, if they have never met you - then you are just a thing performing a role. When people work together, they do build relationships and even introverts benefit.