I was an Android user since 2011 (and a Windows Mobile Phone user before that). The advantage/disadvantage of Android is that every Android phone OEM gets to customize their brand of phones, and the result is a Forrest Gump box of chocolates: you never know for sure what you’re going to pull out. So, you could essentially be demanding that ReSound figure out the problem is with a Brand X, Model Y Android cell phone. In contrast, perhaps the problems are with an Android tweak the maker of a phone hasn’t even totally scoped out - I’ve had such problems with Samsung phones, and I’ve always considered them among the best.
Apple does have an advantage in being in ~total control of hardware and OS software running on an iPhone, but as various complaints about iOS/HA OEM problems on the forum show, you’re not guaranteed a trouble-free hardware/software experience with an iPhone and HA smartphone apps on an iPhone, either. Life is like a box of chocolates…