Thank you, @AndrewMBaines, @joebordes.
What bothers me, is that on Premium Embedding page, as well as in Premium Embedding licence referenced on it, both state that:
“This license [Premium Embedding] removes the “Powered by Metabase” attribution from the embedded charts, as well as exempts your embedding application from the AGPL.”.
This particular phrase sounds like implying that otherwise, without Premium Embedding license, embedding application is not exempt of the AGPL.
However, indeed it only sounds like so, and I cannot find explicit information about the licencing in the Embedding guide itself or anywhere else.
If possible, I would very much appreciate a comment of someone working on Metabase and implicated into licensing process and Premium licenses. Thank you!
Also, if I can suggest to documentation maintainers, I think it is an important piece of information to add to the “Embedding” guide.