Does anyone still use Windows 98 or earlier?

I’m just curious if anyone uses Windows 2000/9x series, or even earlier. My wife’s papaw uses Win98 (he has a lot of computers), has a laptop running XP, but his using 98 really shocked me. So, I thought I would ask the TR world about knowing anyone using earlier than XP operating systems. Of course, also include if you know anyone using earlier versions of Linux/and or Mac OS.