Install Steam in Lubuntu and Ubuntu 19.10 and later [ENG CC]

Stop searching, there are too many obsolete tutorials about the subject. In this tutorial I'll show you how to install Stema in Lubuntu and Ubuntu in versions 19.10 (Eoan Ermine) and later like the new 20.04 (Focal FossaI) in a simple way so you can solve the error message that commonly appears.
Commands (remember not to copy the $):
$ sudo dpkg --add-architecture i386
$ sudo apt update
$ sudo apt install libgl1-mesa-glx:i386

[@Plantaconcriollo]

tenia antes ubuntu 20 y me pase a lubuntu tenia todo en un disco externo y fue instalar steam y de una detecto los juegos que tenia descargados xD