Nuanced question.
Netscape, no, I don't believe they had any ground to stand on. Microsoft may have made their product the default but what was stopping anyone from installing Netscape? Right, nothing, except maybe ignorance of how to do so. Perhaps if Netscape had a better product or better marketing they would have done better. Better product equals consumer demand. Better education of consumers on how easy it was to install would have helped too but not many will take the time to switch without some benefit. Can't blame Windows for having a well adopted product. Apple was out there, Linux is out there, etc, only few wanted them.
Today, no arguments with Apple as I feel they represent a unique ecosystem of one stop shopping that I value. I would love it if every Mac app were in the official store just like iOS. If you don't care for that level of control you can go with Android.
Google is another animal and this is not just Google vs Apple hate.
Google controls internet searches.
Google controls internet advertising. (data mining)
YouTube controls video on the internet.
Alphabet is way too large, time to break it up.
Microsoft not only included IE on Windows and discouraged computer OEMs from offering or pre-loading Navigator but also gave away IE for free at a time when Netscape had largely been charging for Navigator. Do you not think Microsoft's action here was "predatory pricing"?
If you feel you "can't blame Windows for having a well adopted product" then why can you blame Google for having well adopted products? If it was ok for Microsoft, why isn't also ok for Google in search, video sharing, etc.?