You may remember from 2021 that Microsoft's Copilot would gladly regurgitate the GPL-licensed Quake 3 source code, without giving you any indication it got it from there or that the GPL applies.

https://news.ycombinator.com/item?id=27710287

https://x.com/mitsuhiko/status/1410886329924194309

Ok, so go yell at Microsoft about that incident instead of speculating about a different party doing a different thing.