I love this little bubble all of HN (or at least a vocal majority) seems to live in. Google is most definitely not collapsing anytime soon, and their products are loved by millions, if not billions, of users all over the world.
>They are losing their monopoly
No, they most definitely aren't. Brave Browser runs on top of Google's Chromium. Firefox runs on top of Google's money. Their lead in search does not seem to be going away anytime soon - there is a reason literally everyone on earth uses Google as a search engine. There is a reason literally everyone on earth uses YouTube to watch any video they want. There is a reason 70% of all phone users use Google's operating system. There is a reason Gmail is by far and away the clear leader in the personal email space.
>They have announced that they will try to block navigation if you have an ad blocker installed (for example when watching a video on YouTube).
As they rightly can. You are under no obligation to use YouTube - and if you do use it, you must pay for it, either by watching ads, or by paying for YouTube Premium.
HN can keep complaining about Google all they want, but Google is one of the few companies that has truly made the Internet the Internet. Their impact on humanity has a whole has so far most definitely been net positive, and you are under no obligation whatsoever to use their products. There is a reason they are the clear leader in the products they offer, and that is because they offer, say, a free tier (as in Gmail), or openness (as in Android).
But doesn't it logically follow that the same truth holds for any other 'strong' company, thereby rendering our perception of it (or any other company) worthless? I'm sorry you're disappointed, but I just made a logical continuation, that's all.