If it is something that they have to sneak in like that, do you really think it is worth it?

^((the answer is no, these are never worth it. If you ever need something done you will fight endlessly and wait months longer to get any movement).)

Mostly to tell me when my well pump or pressure pump starts / stops, but also events from BlueIris (video) when it recognizes things on camera (its my cheap motion detector lol). I also get notices when maintenance starts / stops on my websites, daily visitor stats and some other metrics I like to keep tabs on. On that note also a ton of notifications from my various web services are sent over NTFY.

Has to be KVM based. Then I look at shared / dedicated CPU cores and IO disk speed.