I fail to see the utility of this at all.
If I want a sticky note, it’s faster to get a pen and put it on real sticky note to stick somewhere.
If I want a note in my phone or whatever, then take the note in my phone or whatever (Evernote, Google Keep, etc.)
It’s just thermal compatible printer paper and a small thermal printer.
It may be somewhat amusing to tell Alexa "Alexa, print me a sticky note that says “Call mom @ 10AM”
But it’s more novelty than actual use.