She is literally a co-founder of the project, foundation and corporation, was the original CEO of the corporation (before stepping down in 2008 before coming back in 2019 as CEO) and has been executive chairwoman of the board for both the foundation and corporation for as long as Mozilla has existed, so you can call her a bad CEO, but diminishing her as “a lawyer working for a large organization” is pretty dismissive for a person who was one of the first lawyers for what became a large corporation (she joined Netscape in 1994 IIRC), co-founded the open source project, led that open source project at AOL, continued to run the open source project after AOL laid her off, and is the person who is probably more than any other figure, directly responsible for the charitable organization even existing to begin with.
I’m not going to argue that Baker was a good CEO, because I honestly don’t know. And I won’t say that Firefox’s languishing isn’t in some ways a reflection of her leadership because she’s been executive chairwoman of the foundation (which the corporation reports to) basically since its inception, but she’s also for better or worse, synonymous with Mozilla. You don’t have Mozilla in any form without her and she’s been there from the beginning.
You don’t have to like her, but this attempt at diminishing her role as a foundational leader of Mozilla is off base and weird.