No feedback, no expectations, no performance review, is this the normal mode in startups?

So I joined this startup last year for backend development. Since I joined, I haven't seen the manager do 1:1 with anyone, he doesn't give direct feedback, he only reports his feedback to the co-founders and they relay his concerns, if any. There is no clear role expectations communicated ahead of time with anyone, no feedback whatsoever (I tried asking for it, on several occasions and all I got was: you're doing fine), only expressed concerns about pace, estimates, and some other bullshit he makes up because he doesn't like me, but that's it.

He's not involved with the codebase in any way, the only understanding he has about the codebase is through interaction during standups. Even when issues arise, he doesn't seem concerned with quality or design issues, he's only concerned with what's complete and what's not, regardless of the quality.

I even once suggested to have some sort of conventions for bug reporting because some tickets often don't have enough context for reproducing errors and then he replied: "We are a startup".

I had a discussion with a coworker who indicated that all the startups he worked at before were like this. Am I having unrealistic expectations or is this a bit unusual?