There is one other option, but it’s really tedious and really annoying and I don’t recommend it. I’m just mentioning it because it can be done.
You can create a virtual switch for each point at which you want a notification.
Then create an automation to turn on that virtual switch whenever you reach the desired point for it.
And then create an automation so that when that particular virtual switch comes on, you get a fixed text message for that value.
Like I said, super tedious and annoying, so I don’t really expect most people will do this, but you could.
Of course, at our house we get a notification if the temperature is too hot in one particular room and then we just ask Alexa or Siri what the temperature is there. which I imagine a lot of other people would find tedious and annoying, but it works for us.