I side-stepped into a new area of work a few years ago. Creative industry where people in my role are freelance - but we work collaboratively with various companies and are hired by them on a contract by contract basis.
Lots of people who do the same thing as me have noticed that the levels of emails simply never being replied to, even by people you've previously worked with/had a good professional relationship with, are increasing.
My industry (media) is well-known for being pretty competitive and not the 'nicest' - but it seems to be becoming a real problem. I had a meeting last Friday - all seemed to go well and the 'client' requested follow up information. I sent an email after that and it's been utter tumbleweed since then, not even a 'thanks I'll get to this when I can' response.
This is NOT the first time, and I'd be taking this all personally if others I know weren't also complaining about it! It's making me wonder if something has fundamentally shifted in how we communicate with each other, maybe as a result of homeworking/the pandemic etc?