DD2 was assessed face to face. ADOS and 3Di plus home and school questionnaires.
DD1 was assessed face to face with ADOS and then I had a remote interview with the psychologist.
DD3 was assessed completely remotely, still using ADOS and interview.
The only difference I could see is that DD3 didn't have a physical interaction with the assessor. I remember in DD2's assessment that the assessor held back some shapes and there was a really awkward spell while DD2 tried to work out how to get the shapes to finish the puzzle without asking for them.
I was assessed remotely via questionnaires and virtual interview with a lead assessor and an observer.
DH was also assessed remotely but I believe his non-diagnosis is a huge error. He's clearly autistic (his current boss asked if he was autistic on day 3 of his job, having clocked it within hours) but they asked if he enjoyed going to parties as a child ('yes') and didn't ask any follow up (which would have revealed he only went to one).
DD3 was assessed for ADHD in person by a psychiatrist who also used the QBcheck.
I was assessed for ADHD by a single assessor. He wouldn't ask me direct questions but asked me to tell him why I thought I had ADHD and just gave me themes for discussion as guidance. He said afterwards that it was because he spends much of his day telling people that the TikTok video they watched isn't actually a good guide to ADHD.
I agree with people who say that being in a ND house makes it hard to know that what you do is ND. I remember a support worker saying 'you explain yourself so much to your kids.' Well, they asked the question...'
I taught DD2 eye contact when we crossed the road to school when she was 4. 'We look at the lollipop lady, we smile, then we can look away.'