Welcome brothers and sisters, I really like foss apps and I cant imagine android without Fdroid, but lately I installed Fdroid on my new phone and play protect say - this app can be dangerous so he stopped installing apk. Of course I downloaded fdroid client from official site https://f-droid.org/ so it cant be something dirty there, anyway maybe play protect is supersensitive or something? or maybe I should use other client like droid-ify? - https://github.com/Droid-ify/client/releases or simply dont care and turn off play protect because its normal thing how he “fight” with fdroid. Thank you for helping with my paranoia.