Listen y'all there's a lot of comments in here about dress and culture and it boils down to the 'no true Scotsman' argument which you can look up on Wikipedia

No true professional can be casual period and casual culture doesn't scale anywhere beyond the bullshit we're seeing all over the tech industry

A lot of people will try to use silly outdated counter examples about people who dress professionally but aren't and people who don't dress professionally but are

Put that shit on a two by two matrix and find the fucking golden quadrant you wannabe software specialists