A lot of people won't think outside of the box and see that the definition of monopoly has to evolve with the times. It's not the early 1900's any longer, big tech is redefining the way we need to address lots of things.
The CURRENT_YEAR fallacy is never a convincing argument, but especially not here considering the last significant anti trust action was one taken out against Microsoft for very related things.
We've had "Big Tech" and monopolizing actions amongst them for a while now.
Parent is right though. We didn’t have global tech empires with that kind of leverage at the time the monopoly laws were created. By spreading a browser for free, Google gains control in many subtle ways that eventually lead to revenue. That is definitely dangerous, although it doesn’t fit a classical monopoly.
This killed the original non-chromium Edge. Not sure if it fits a monopoly definition but it is definitely not good behaviour.