If you are missing XP and you have, or want to get a Raspberry Pi Model 4, then you can use this Raspbian version with the XP skin. (Click to enlarge images)
Leafpad takes over from Notepad and Pinta takes over from Paint
Office is repaced with LibreOffice
Chromium is the browser
Accesories and settings are available from the Start menu.
More info available here.
Download Disk Image here