I have heard some have had success ripping GCN+ videos using Steamfab and yt-dlp.
Would try it myself but I don't have a GCN+ subscription and they closed sign ups (why would they not accept new users who want a last chance to see their content before shutting down? annoying), hopefully you or someone can get them all before they're gone forever..
Great news! Will you happen to be sharing your rips, at least of their original films?
Can't find these videos anywhere (not even purchasable from GCN+ anymore)