unattend.xml for WVD? How to install apps after first boot?

kev-o Generally in WVD there are 4 way for delivering applications 

1) Intune/SCCM/MEM 2) Application layering 3)Include them in master image 4) script them 

for #4 here is a sample script I wrote that does installation of apps right after provisioning https://github.com/stgeorgi/wvdquickstart/tree/master/Modules/ARM/WvdApplications

(Adviser this is somewhat complicated if new to WVD).

for #3 For master image deliver https://docs.microsoft.com/en-us/azure/virtual-desktop/set-up-customize-master-image

for #2 This takes some learning too but you can look at aka.ms/msixandwvd, or Liquidware, or Liquit

for #1 https://docs.microsoft.com/en-us/mem/intune/apps/apps-win32-app-management