During the install process, optionally allow for installing LTSC instead of regular Windows.
You can do so by specifying a download url in the compose.yaml
e.g.
VERSION: "https://archive.org/download/Windows10EnterpriseLTSC202164Bit/en-us_windows_10_enterprise_ltsc_2021_x64_dvd_d289cf96.iso"
instead of:
I've tested linoffice with Windows 10 LTSC instead of regular Windows, and it works nicely