I agree with the sentiment but not with the advice “commit a felony to avoid maybe getting a felony”. There isn’t a chance you’ll get charged with destroying evidence if they’re already looking at you under a microscope like your hypothetical.

Anyone that concerned needs to just not store sensitive data on their phone, and use a messaging app that doesn’t permanently store messages, either. That way you didn’t erase your phone, AND they find nothing. Attempting to secure your data from the cops while you’re already under the lens with a warrant is far too late.