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Gmail users warned to opt out of new feature - what we know
(www.newsweek.com)
This is a most excellent place for technology news and articles.
Unfortunately it comes down to luck, you can check this crowd-sourced list to see if your banking app works. Users report whether or not they had (sandboxed) play services installed and what settings they toggled.
You won't be able to use GPay/Wallet at all due to lack of SafetyNet.