@Tommy We're arguing semantics here, but I think it's important to get the details right.
Every single application on F-Droid is 100% FOSS. All of it.
Now, what do I (and everyone) mean by "application on F-Droid"? It's the code that actually runs on your phone. All of that is 100% FOSS.
Now, some of the apps on F-Droid are going to connect to servers that run proprietary software, but the application itself has no proprietary components.
@Tommy
Even Stallman doesn't mind applications connecting to servers that run proprietary code, as long as you don't run proprietary code on your machine.
That sounds like something made up 
@Tommy https://www.gnu.org/philosophy/network-services-arent-free-or-nonfree.html
"If some of them are nonfree, that usually doesn't directly affect users of the service. They are not running those programs; the service operator is running them."
"if the service operator runs GNU/Linux or other free software, that's not a virtue that affects you"
"Thus, we don't have a rule that free systems shouldn't use (or shouldn't depend on) services (or sites) implemented with nonfree software"
