What you're thinking of on the Nintendo switch is a recovery mode. Every (most?) modern systems have something like this. It's a lower level area that allows you to fix issues in the higher level areas, even when that's broken (ie, a failed system update). Your iPhone, android, and smart TV all have this.
That being accessible wasn't the mistake. It was all properly secured. It rejected your commands and everything has to be signed by Nintendo's private key. But Nvidia firmware had a buffer overflow bug inside of it that allowed arbitrary code execution.
I am not a lawyer and am not behind a PC atm, but didn't Rowan v. USPS determine that the receiver of mail has sole discretion about if the material they received is pornographic or not?
I wouldn't assume this is how it works. But it could know your time zone changes and assume departure/arrival times based on it not being able to ping a server, then link this between possible airports based on time zones then possible flights based on the times.
But I suspect the false positives on this would be huge and if you felt so compelled could easily test while at your desk.
This is built into Android. A program like Discord has very granular controls over each type (DM, server event, stage event, etc) of notification as well as controls for each source (You can set a specific users DMs to be priority messages, silenced, show/hide from lock screen, etc).
A program like Uber Eats has a bit less benefit to allowing such controls over what they send you. While they do still break down messages by type, their descriptions are a bit cryptic and after getting an unsolicited notification from it, I ended up disabling all of them.
There has recently been a pretty large UI inclusion for midjourney directly inside Discord which has the option of being used instead of the text input.
As is often the case in these sorts of thingsz your milage may vary for the more complex settings.
Not OP but I've had luck with zinc and magnesium aspartate supplements commonly available on Amazon. I take two caps that each are a net about 500mg an hour before bed, along with 1mg of melatonin.