I saw a guy on tinder once say not to even bother if your texts are going to be green. It really rocked my world to realize there are real people actually like that out there
Way faster than the typical android notification takes to show up (since heavy battery saving was made standard) for any IM app
I don't think it has anything to do with getting your apps from Play Store vs elsewhere. This is in the UK and despite Google Play being available, back when I worked in a phone store, customers bringing compromised Android devices was fairly common (in fact some of them didn't realize the bullshit ads or spam on their lockscreen/notifications was malware, they thought it was just normal and accepted it), and that was only the stuff I could see - technically there could be plenty more malware that chooses to remain stealthy.