I thought they were compliant for UniFi AP firmware but not 100% sure on that. I've seen in the past where upon a new release being published they would forget

I thought they were compliant for UniFi AP firmware but not 100% sure on that. I've seen in the past where upon a new release being published they would forget to update the GPL archive on the site. Just email support@ui.com and they do have it internally. At the very least I found a current copy on the downloads page for EdgeMax and I've seen others mention it for UniFi, mFi, and airMax. The only thing Ubiquiti seems to be openly flaunting the GPL on is AmpliFi where I've personally emailed them, escalated the request to their "Development team" and received a response more or less equating to "go pound sand". They seem to be skirting their requirements in not providing the full git repository for the GPL portions which might be a bit of a gray area but AFAIK the GPLv2 stipulates "The source code for a work means the preferred form of the work for making modifications to it." which I would think would encompass the git repo as well but IANAL. In the past they also refused to provide the source code for their modified version of uboot claiming some nebulous security reasons but that stopped a little while back.