long story short
camera app(s) failed/errored multiple times as i tried to video record two strangers approaching my private property. i downloaded multiple camera apps from f-droid and they all failed as i tried to record. Permissions for microphone, camera, storage were active/on. Either the camera or microphone would glitch on any app.
after about an hour, strangers gone, the default camera app starts working. no uninstall, reinstall, clear cache. i suspect hackers?
what will stop this from happening again? is it possible to ensure smartphone camera apps are secure?
here are some screenshots of errors