Given that there are a large number of devices that need to receive an update, as always, it will take several months until all the devices are patched. As always, delivery speed depends on the manufacturer of your device, the version of Android and the region where you are located.
To avoid potential abuse from these vulnerabilities, as always, do not download applications from unconfirmed sources, and do not click the suspicious links you receive by email and social networks. Google Play should be safe, but not every application can be checked - so approach every download with great caution.
This is especially important for all who use mobile crypto wallets or any crypto exchange on their smartphones. Treat your devices equally whether it is a PC or a smartphone, security first.
More info : Android's February 2020 Update Patches Critical System Vulnerabilities
Is the stock android most secure in this situation as it will receive the update first and instantly ?
For different versions of android developed by the mobile phone provides like Color OS etc, they do not receives updates quickly and this will make the phone vulnerable until the update is applied or patched ?