I think a psychiatrist would be in a better position to answer this but I’ll try.
so autism is a spectrum - from someone who can’t communicate at all or live independently to someone who, like me is high functioning. To be diagnosed with autism you have to have a number of traits - so just being sensitive to certain noises alone would not result in a diagnosis. In your example I think most people would get annoyed at interference on a zoom call but most people wouldn’t get annoyed or feel physical pain from the sound of someone shouting for example. Most people wouldn’t feel like their head was going to explode by the sound of different conversations happening around them.
Most people have special interests … but most people wouldn’t sit and watch documentary after documentary about the same subject over and over again whilst also researching about said subject on the internet and wanting to talk about it non stop to anyone that would listen. Most people would recognise that the other people are getting bored, an autistic person won’t as how could they possibly NOT be interested in this amazing fact I’ve just discovered about my special interest?
The struggles with socialising go way back to being a small child. Yeah a lot of people don’t like small talk but would play with others as kids … the child who constantly spent their childhood alone and disliked because they couldn’t understand the concept of imaginary games etc is different to the others.
yes life can be exhausting for most people but for autistic people it can be near on impossible to navigate