Generally I think people that use Linux on their home PCs are more likely to have stuff like multiple screens or loads of gadgets attached to their computer. A lot of Linux users think it's really cool or like to imagine themselves as someone that does things like lots of complicated data analysis or being an "epic hacker" in their spare time at home. Extra shit on your desk can be genuinely useful if you actually do those kinds of things and add to the aesthetic if you like them.