What group would I fit into based on what's on my computer screen?

I'm trying to determine which group I would fit into based on what is displayed on my computer screen. My current setup involves multiple user-specific activities and scheduled tasks that trigger upon user login, but I am experiencing issues with tasks running for the wrong user or at unintended times. I want to understand how to properly configure user-specific activities and scheduled tasks so that they activate only for the correct user when they log in, especially when multiple users share the same computer.