I haven't used it other than doing some reverse engineering via KiloCode. https://sschueller.github.io/posts/making-a-label-printer-wo... to be exact.
I am so glad "open" alternatives exist that are almost as good and no state or company has control over. Living in a world where cooperation can decided who "wins" and who "looses" is a scary thing.
Google gives no explanation, no recourse. nothing.