Eye contact with strangers is legitimately almost impossible for me. I look at peoples nose or eyebrows usually if that lol. I actually go out of my way not to look at service workers' faces when I can manage it. I'll look at my phone, look at stuff for sale, look at signs, sometimes literally turn the other way lmao or like fuss with my purse or something 😂 even just the thought of it makes me shudder.
With like long time friends and family, I wouldnt say i struggle at all. If I know you well then it doesnt bug me at all.
One thing to bear in mind is that the boundaries between adhd and asd are not super well defined and there is lots of overlap between the two. I am both autistic and have adhd, which isnt uncommon at all.