Ultra tiny goodness ~200 MB idle RAM usage =
https://lxle.net/
If your XFCE is ugly, you can install "https://github.com/rozniak/xfce-winxp-tc" or "https://www.pcworld.com/article/456925/how-to-make-ubuntu-linux-look-like-windows-7.html"
An interesting links Void Linux XFCE (~the most responsive linux ever) Spiral Linux (it has everything) ...