Cygwin/X newbie here - about xfce4

Sun Feb 27 20:16:24 GMT 2022

1. Is there what in some other OS's is known as a "meta-package" 
for something like xfce4"
2. Alternate version of question above: is there a base xfce4 
package whose install will corral in the collection of xfce4 
packages needed to get a first approximation to a working 
desktop up and running?
3. Can the Cygwin packages collection be searched for a single 
file to find what package provides it? Example: 
'.xfce4-session'?
Thank you
-- 
Some men are born mediocre, some men achieve 
mediocrity, and some men have mediocrity thrust 
upon them.
 Joseph Heller