I have created a separate question Google Chrome completely unresponsive on the problem that may be fixed in this way.
The browser cannot open any page, not even the settings, plugins and addons pages.
Using the incognito window has the same problem, maybe because some plugins are still used (or loaded).
I think addons are userprofile-specific, as indicated in the solution to the question How to open Google Chrome with extensions disabled / turned off? indicated as the one to which this may be a duplicate.
Therefore, I need to try to start with no plugins (and this one is no duplicate).
Is it possible to start Chrome in safe mode or something so that no addons or plugins are used?
(I mean start the browser already with all those disabled, because, as presented in the other question linked above, I cannot access settings nor plugins because NO window works, NOT EVEN Settings (chrome://settings/), About Google Chrome (chrome://chrome/) or Downloads (chrome://downloads/)!)