SOLVED
I don't know what the heck is the problems.
Since I can login using a newly created user account, I believe the problem is with my current customizations.
It seems that some of my old settings make a segfault on GNOME Shell 47 —Well... I keep my home folder since Ubuntu 8.04 (you read that right, 2008 Ubuntu, 16 years old)—
The Solution:
Code:
$ dconf reset -f /org/gnome/desktop/
In case you want to backup your old dconf settings first:
Code:
$ dconf dump /org/gnome/desktop > dconfbackup.txt
Where dconfbackup.txt is the filename of your backup.
To restore the backup:
Code:
$ dconf load /org/gnome/desktop < dconfbackup.txt
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