Ubuntu Crash constanly after last patch update

I was playing Counter Strike Global Offensive in Steam when system crashed.

With the last patch, I lost the audio of my monitor, and gnome-shell or the display (I don't know what) is crashing a lot of times.
Maybe the problem is about multimonitor. I have the TV connected via HDMI to my computer.

It's impossible to play any game with this operating system. Ubuntu 20.04.1 LTS crash and crash and crash and throw to desktop all the time.
The patch updates are always horrible, destroy the stability of the operating system. I am thinking to go to Manjaro, Debian or maybe Linux Mint.

Canonical need to take better care of the patches that it releases.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.25
ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 26 18:02:55 2020
InstallationDate: Installed on 2020-04-24 (154 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)