I prefer has/with autism rather than "autistic" purely because I've been on the receiving end of "autistic" used as an insult/slur.
As to whether the situation is difficult for children with autism...well you know what they say- when you know a person with autism, you know one person with autism.
I have two children with autism, that are diametrically opposite of one another. One is struggling, she needs her routine, and missed school and friends hugely during march-september. She was extremely anxious about breaking any rules, to the extent that towards the end of 1st lockdown, when I suggested she went for two walks a day (because she was going stir crazy) she was wailing and panicking about the police stopping her in the street. She hates masks with a passion, but wears them in school because they're supposed to.
The other one was happy to not go back to school ever and finished off Y6 at home online. He likes his new school, but when he had to SI this term would have been more than happy to just do home learning forever. He definitely found social interaction difficult when he went back after SI and half term, so nearly 3 weeks off. He likes his mask- they've become a safety blanket for him- he wears one even for a walk in the park.
Me... I'm happy WFH, but equally happy in work (purely because I have my own office that no-one else is now allowed to enter -
perfect!). I'm most productive when alone and undistracted, but I'm finding video conferencing a nightmare, just very distracting and so hard to know when to speak, so I just don't say anything. (I have a hearing impairment too, and my speakers are not the best!)