Do you actually think the majority of everyone else is being just as pedantic (or cares) about Google Chrome vs chromium-based?

For most, for the purposes of market share (the type of "monopoly" I believe they are referring to), I think they count it as one and the same.

Do most people call Microsoft Edge or Safari "Chrome"?

Are the security and privacy implications the same for Edge, Safari, and Chrome?

Seems to me like they're still quite different products despite having some similar codebases!