You can make your W11 or W10 look like XP with Windowblinds and Start10 or Start11...or, you can actually run good old Windows XP on your W11 or W10 computer using a virtual machine.
Take a peek at MakeUseOf's article on how to here: https://www.makeuseof.com/tag/download-windows-xp-for-free-and-legally-straight-from-microsoft-si/?utm_source=MUO-NL-RP&utm_medium=newsletter&utm_campaign=MUO-NL-CP
And by the way, it's perfectly legal.
This post is dedicated to my old friend Steve (WebGizmos) who loves Windows XP.