Why were all bookmarks and extensions deleted in Google Chrome?

Question

Google Chrome

Why were all bookmarks and extensions deleted in Google Chrome?
I go to chrome - there are no bookmarks, I look at extensions - adblock has been removed, google sheets, google documents have been installed, and the strangest thing is avast security.
Before the reboot, I had a problem with dubious extensions auto-installing, but nothing was removed.
Just found out, he generally reinstalled. Myself!

Answer 1

Most likely logged into chrome with a different Google account.
It is possible that someone on another computer changed the browser settings without leaving the account.