You can disable the app involved to block all wireless alerts. You'll need to use adb though. I did that too because the government here doesn't respect the on/off toggle for alerts and they constantly send alerts when it rains or storms a bit. They come through even when emergency alerts are switched off completely in settings, unless that app is removed.

Sometimes they do it even twice in the same week. They're probably worried about a repeat of the Valencia floods and getting blamed. So they're constantly covering their asses. But I'm sick of them crying wolf all the time.

We don't have this amber thing but it works the same way (prioritised cell broadcasting) so it can be blocked.

The app is com.android.cellbroadcastreceiver on Android 13 and above

But yeah I view this in the same vein as the governments wanting to hijack our phones for spying on us (chatcontrol) or forced identification (the topic of this article). I'm sick and tired of my phone taking orders from other people than me.