If a company is based in an "X eyes" nation", but the product is A) self-hosted and B) open source, does it matter that the organization the develops it is based in an "X eyes" nation?
I don't think it matters if the product is selfhosted and opensource. That said, in my circles, people are wary about deploying software from specific countries even if they are selfhosted and opensource. I think part of the issue is that docker is the preferred more of deployment these days and sometimes it's not clear what does into the docker image (i.e when you don't build your own images, which you always should)