found why, its the background app refresh settings, theyre all broken & ignore what u set. turn on background refresh then manually turn off every app, go back to the previous menu then go back to background refresh, a bunch of apps u just turned off will turn themselves back on. same thing when background refresh is turned off globally, when turned on (so u can see each app's setting) a bunch of apps are on again. the toggle to turn off background refresh globally is being ignored even if it appears off, my battery usage reported almost every app having background usage.
also explains why my device is very warm, cause everythings running on it in the background, guess ill revert & wait for beta 2