The android system itself is not very secure, and keeping your core finances there is a very risky business, there are a lot of those who are lapping the android phones and wallets with them
There are disadvantages in any system, but the security can not be abused for sure.
But I personally just use IOS, then the level of protection is higher because the developers themselves have already closed access to the user and let's say its a reduced platform from the very beginning and its harder to catch the virus