F-droid doesn't have non-free software. F-droid flags some apps with anti-features for various reasons like non-free network services (https://f-droid.org/wiki/

F-droid doesn't have non-free software. F-droid flags some apps with anti-features for various reasons like non-free network services (https://f-droid.org/wiki/page/Category:Apps_with_NonFreeNet_antifeature https://f-droid.org/wiki/page/Category:Apps_with_NonFreeNet_...), which is quite useless honestly since it makes no difference even if a remote service is free since you don't control that end. Perhaps historically f-droid allowed non-free dependencies (https://f-droid.org/wiki/page/AntiFeatures https://f-droid.org/wiki/page/AntiFeatures), but I don't think that's a thing any more. I don't see any major apps in that category.