https://www.google.com/search?q=havdalah+nine+days&rlz=1C1SQJL_enUS855US855&oq=havdalah+nine+days&aqs=chrome..69i57j0l2.3285j0j7&sourceid=chrome&ie=UTF-8

What about Motzei Shabbos during the nine days that isn't Chazon?

According to this meta proposal https://judaism.codidact.com/questions/276383#answer-276874 this question appears off topic.

Fwiw on the rare occasion I've been present to celebrate a siyum during the nine days I've never seen anyone giving away their meat, if there was any, to a child.

@AA That is really not the same. I have heard this particular topic discussed many times before. (My LOR even noted in the Shiur that for many years when he discussed it, I would use the example of whichever one of my kids was the "right" age; now mine are older but the Rabbi has kids in that age range). A Siym, or a Bris, is a special Seudas Mitzvah. I believe the concern with Havdalah is that it is not special.

https://judaism.stackexchange.com/q/2180

@manasseh i agree they are different. there is much less reason to allow eating meat or wine at a siyum since no one usually celebrates a siyum with meat and wine so the disregard for the mourning is more blatant. havdala, being at least a rabbinic obligation, is much more halachically special than anything else you mentioned. A bris usually has bagels and cream cheese and a siyum usually has entenmann's donuts if you're lucky.

a) I understand the different opinions regarding a Siyum, but I have most certainly had meat & wine at a Siyum - shortly before shutdown my Shiur (I didn't start it, but I took over when the original leader of many years left town, though he was able to return and speak at the Siyum, which was awesome) had a Siyum and we most definitely had meat & grape juice - though most of us went for the whiskey; b) a Bris having meat & wine (even outside the 9 days) is not that unusual.

@AA I see no issue with my question based on those proposed rules.