The first facebook issue that you mention is unrelated to the App Store, it’s an OS restriction. Side loading won’t affect this.
Apple can clearly make the OS secure/privacy friendly if they want to. The only layer of security that you may lose is the dubious “review” process, which clearly doesn’t do anything considering the amount of scam apps on the store.
Apple can clearly make the OS secure/privacy friendly if they want to. The only layer of security that you may lose is the dubious “review” process, which clearly doesn’t do anything considering the amount of scam apps on the store.