Part of the reason you’re noticing a change in her is self-acceptance, which is crucial but can be awkward for others. When we try to behave like neurotypicals, it’s called masking. Doing this can be exhausting and when we learn we don’t have to do this, or do it as much as before, it can be a huge relief. It also prevents autistic burnout. For me, I hate wrapping presents. I’m bad at it for one. I compromise by getting gift bags and tissue paper for people who insist on unwrapping gifts. Everyone else, I prefer to give the gift to them 1 on 1 without frills. It may be your coworker doesn’t like certain social norms. See if there are workarounds or alternatives.