Some people like to over-optimise everything. Window manager, vim config, unix tool choice, split keyboard, DVORAK layout, mechanical keyboards, coffee brewing, Obsidian note-taking/Zettelkasten, mice (the rabbit hole for mice goes as deep as keyboards)

This is often more about enjoying the process of optimising than wanting to be productive overall. Some may spend a lot of time reading Hacker News to "keep up with new tools" and clipping their productivity bonsai tree at the deteriment of actually getting work done. They may be the type to spend weeks optimising a command that is run once a year. They may obsess over pointless details that don't matter.