The damage they do is much worse. They practically control the evolution of the web standards at this point, thanks to their market share. They also get to dictate the dominant standard and stifle competition in associated domains like image formats. What makes it so insidious is that this damage is practically invisible to the regular users, unlike the spyware-like behaviors it exhibits.

This is a chicken and egg problem. What is Mozilla's incentive in spending any effort on JPEG XL if Chrome doesn't support it? There won't be any demand for it from content creators until the majority browser adopts it.

The only way to protect the web users' interests against Google's commercial interests is to dethrone Chrome - no matter how farfetched that sounds. It's such a shame that the world managed to paint itself into a corner again inspite of the bitter experience with the earlier browser wars.