thanks for your response!
I read those threads, and it seems the conclusions were:
(1) There will be an additional mechanism that allows for up to 7 days -- and that includes daily acknowledgements. Oh, and it is desktop only, it does not work on servers.
So this means that if I leave my computer for more than 24 hours (like for the weekend) I come back and see my software updated. Let's hope that presentation was not monday morning!
(2) If I want to have deb-like mechanism I need to "Rebuild snapd itself"
(3) There is no work planning on replicating deb-like mechanism that allows indefinite postponement of updates. This is because every core developer thinks this is a bad idea.
Did I get this right?