Yes, and it was doing the same with your old phone! Social media apps = malware.You know, now that you mention it, I have put Facebook on deep sleep and I still get notifications all the time!! It's so annoying! I think I will just uninstall it and just use the browser when I actually need it. I use it like once a month anyways.
Well well.... I just checked my battery settings and found Facebook eating away at my battery just now