I’m an autistic adult and a therapist working a lot with autistic young adults. It sounds like your daughter might, like many at her age, be overwhelmed and burnt out after the school years but does not realise it and doesn’t have the skills or insight to cope. It sounds like she doesn’t accept being autistic either, and therefore may have exhausted herself masking through education, and has now got to this age and stage and finds she can’t meet the neurotypical mark here either.
This is NOT an excuse for the behaviour, but it may be a reason. I know this level of overwhelm, and how it can manifest. Demand avoidance and angry outbursts in particular. It’s not fun to feel and it’s not fun to be around either.
I also want to acknowledge this is extremely tough on you and the rest of the family, and being autistic does not mean you behave how you want to everyone, nor that there are no consequences when you treat others like crap.
Let her stay where she is and give things some time to calm down. It will be interesting if the same behaviours show up where she is, or not. If not, then why not - is it because she’s masking there, or genuinely are there things about that environment that work for her that don’t work at home, and what could you all learn from that I say all, as this does involve you all, not just her, changing behaviours. You can’t hold an autistic person to neurotypical standards she will simply never be able to conform to. Part of the issue may be that she too is struggling with that reality. Again, not an excuse to treat others badly and not be held to account though. It sounds like the job is the least of the worries here - it’s going back to basics wrt how you treat each other and communicate.
I really recommend Kieran Rose’s “The Inside of Autism” course for parents and carers (and professionals). It’s led by lived experience and offers great insight into the autistic mind, which can help with understanding what is going on in your interactions. Often, resources on autism are written by neurotypicals who have not a single clue what life is actually like for us. Also autistic affirmative therapy or perhaps coaching, if she can’t engage with therapy. Parents/carers can also benefit a lot from therapy and coaching too, even if the young person isn’t able or willing to engage. Just somewhere to let out the stress, process it and think with someone unconnected about how to do things differently.