oh...well here in the US, those amber alerts are only on cellphones connected to mobile networks. A tablet that's not on your mobile plan wouldn't be connected to that alert system, especially if you use a good VPN like mullvad or proton.
This and many other sources say they do. Of course its easy to turn off, just a few clicks. Not something you need to fix with a VPN and sure as hell not something id suggest buying a whole new device to avoid.