I'll agree that shifting consumer preferences related to software is a major threat to Samsung. I have for several years taken the position that there are only two smartphone options - the latest iPhone or the latest Google Nexus/Pixel.
This is about one of the largest mobile phone users country. And apparently same holds for China
Regarding smartphone features - the really don't differ very much. I buy Google phones because a) I want them unlocked, and b) I don't want malware and bloatware, and c) I want regular updates to OS.
https://www.eff.org/deeplinks/2017/03/first-horseman-privacy...
That said, I disagree I would trust even Google branded phones re: malware. Android will likely never have my trust there.