Third-party apps are not just to be completely trusted; you can give them a try but still be security conscious. You can't predict, and they also can't give you all the protection you need 100%. sometimes their will be some security tips and suggestions against the danger ahead, but due to how some can be in a haste, they can ignore the warning, which they will later have to regret. Just like we make use of ad blockers every now and then due to how unfriendly and annoying ads are becoming nowadays.
We don't have to give permission to most third party apps on our devices that we store our crypto on. Better to have an offline storage device for your crypto as this is more safe. If you're still going to use an online wallet, restrict the apps you download, limit your link clicking, the permissions you give the apps you download too because clone apps can be used to steal your crypto. Divide your crypto, don't put all your crypto in one wallet. This is an extra precaution measures for incase one wallet gets compromised because we can never be too careful, one mistake and all our crypto are gone.