For one company, I made documentation for archive and backup software and I worked closely with tech support. Most customers were sysadmins, and a small subset had no clue what they were doing and they would call us for every little thing even remotely connected to our software. One was a case of an image in a spam email wasn't able to be archived and they were freaking out about the error.

I also worked at a university and that was concerning because some students would just give up whenever anything didn't go right the first time. No troubleshooting skills at all. We were moving from Google to MS and they needed to use Takeout to backup their stuff locally, just in case something happened. But we got a lot of calls because it wasn't ready to download immediately. I've heard it's gotten worse.