i've worked for startups my entire career. it's okay. you set your own boundaries. if you show up a little early and leave on time, people will respect that
they might cross their fingers and hope newer workers drink the kool-aid and stay late, but i'm assuming employment is always at-will where you are. worst case scenario, if they start demanding you work late you can just work for a different company. i don't know what role you're being hired for, but startups generally look all right on a resume. startups are typically more vulnerable to having siloed information and needing every single employee.
you can ask what the hours are, and they can lie. i would ask once, and maybe ask about the overall culture as well.
there was a person at a startup i worked for that stayed past 7 every night. then they had this revelation that they wanted to date/have a life, started leaving at 5, and the company has continued to love them forever.
only thing i can think of is if you get roped into dev ops duties- they might want deployments to happen at night, in which case you can negotiate different working hours
the pay is generally less than working for a large company, but theoretically you might believe in the mission more or enjoy the comparative autonomy or higher responsibilities. stuff happens faster at a startup and there's less red tape. if you're young and want a work social life, there will be more young people to hang out.
the exception is if the company and concept is actually mind-blowingly good. the smart move is to repeatedly switch companies and boost your salary until you find one that you know will succeed, and get as much equity as possible
i can't give much advice without knowing your role, my knowledge is fairly specific
You did indeed stab me in the back. However, you are only level one, whilst I am level 50. That means I should remain uninjured.