I'd assume the app / technology Microsoft is pushing over all else is more worth a bug bounty than say Visio so maybe more accurate to ask are there any major companies with their new key product that don't have bug bounties?
Happy to be wrong and put my foot in my mouth though I've misunderstood folks before :)
This is about the M365 Copilot, which is the enterprise version. The normal consumer version of Copilot shares nothing in common except for the name, at least that’s what I’ve been told. Different architecture, team, back end, etc. And side by side, the enterprise version is much crapper of the two.