How can we ignore these kind of hijacking/malware application as it is now a threat to those who mostly uses Android phones?
Be knowledgeable.
In any mobile phone digital distribution service whether app store or play store, it's easy to recognize a fake to the original. Check reviews, downloads, the developers, check the link of the app, using the "share" feature in the upper right, mostly the URL is simply written with its website "play.google.com/.../?id=io.metamask", fake ones have different characters on it. Also check it's website if it redirects on the same play store page.
Use adblockers either on mobile browsers and desktop too, firefox has lots of security features, mobile or desktop, just enable it and use "strict".