I hope you get some answers soon OP.
I can only speak for my own journey but like you I was very fearful that they'd not find any answers.
In hindsight, the assessors were trying to subtly hint the likelihood of my outcome but of course being autistic, I didn't pick up on the hints!
But what I will tell you is that my assessor said that if I wasn't diagnosed with autism, I would certainly have got a standalone cPTSD diagnosis. She said the deciding factor was whether the issues could be evidenced as beginning in childhood, and that many autistic adults also receive a dual diagnosis of autism and cPTSD because being autistic is inherently traumatic especially when late diagnosed. She reassured me I wasn't broken or maladapted and neither are you.
I ended up with a diagnosis of autism, with evidence to support I needed substantial support with all daily living activities.
It was a hard read because it's true, and it felt wrong to be happy that my entire life had been pathologised on a piece of paper and basically pointed out all of my unchangeable flaws and struggles, but it was also a huge relief that all that time I spent worrying about the outcome, especially when it was basically being written in neon, was for naught.
I don't know if this will offer any reassurance to you but it sound extremely hopeful that you'll get the diagnosis you're looking for if they've already indicated you've scored highly on the ADOS, and they'll likely just be collating your history together to be sure that they're correct. They have to be careful especially with adult diagnoses because it is a lifelong developmental disorder, and you've gone on masked for so long in your life.