Depends on the type of company.
Most office jobs are like that, although there is quite an exception when it comes to coding jobs where they allow you to dress more casually in many places, or game dev companies that often don't even have a dress code at all.

Although in most cases, you're still expected to come in a suit for job interviews regardless of dress code.
And this is one blessing about the whole scamdemic, because in online interviews you can just dress mostly however the fuck you want, because they won't be able to see anything other than your head and a tiny bit of clothing anyway.
So just some white Adidas T-shirt can easily be mistaken for a office nerd shirt for example.