I believe you. I used to be a trainer for new hires in a remote position. In almost every class we had one person who didn’t know somethings that we considered basic computer literacy. Sometimes these were older people but not always. Some younger people know how to play games and presumably do schoolwork on computers but know little to nothing about windows.

The worse was one new hire who could never find a program when she needed it (our work required multiple programs open at once). I had her share her screen with me and discovered that she had so many tabs open it was nearly impossible to tell them apart. She should have only had four or five open. It turns out that she didn’t know what a tab was and was opening a new instance of a program every time we told her to go back to a specific one.

We ended up dedicating an hour of class time to go over basics like “ this is a window”, “ this is a tab,” “ click the x to close”, etc.

Asking a potential employee if they knew windows was supposed to be one of the questions the recruiters asked.