Using the Retroid Pocket Mini for general usage

Is the mini not running Android 10? Depending on your threat model, if this is your only device I would be extremely cautious and make sure you harden it as much as possible. And treat it as vulnerable device. I say this as a lot of these Chinese retro handheld companies very rarely update their devices. I have seen that it’s left to the retro communities to come together to “fix” stock software issues themselves. I don’t want to assume your situation, but would you not be able to acquire a second hand Pixel 8a? I think the 8a is the cheapest GOS supported phone with MTE support. This would give you much better protections and privacy. If you are stuck with this device, I would swap cromite for Brave as cromite seems to be behind on security updates, and then just disable Braves crypto crap. You might want to enable the Strict Account Settings in WhatsApp just for extra peace of mind.