Brave Browser packages configured multiple times after install on Linux Mint

Description of the issue:
After installing Brave Browser on Linux Mint, several Brave Browser packages are configured multiple times within my sources.list.d directory. Every time sudo apt update is run, the following warning messages are returned:

W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Translations (main/i18n/Translation-en_AU) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Translations (main/i18n/Translation-en_AU) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/brave-browser-release.list:1 and /etc/apt/sources.list.d/brave-browser-release.sources:1

As best as I can remember, I installed Brave Browser via the official guide with the following commands:

sudo apt install curl

sudo curl -fsSLo /usr/share/keyrings/brave-browser-archive-keyring.gpg https://brave-browser-apt-release.s3.brave.com/brave-browser-archive-keyring.gpg

sudo curl -fsSLo /etc/apt/sources.list.d/brave-browser-release.sources https://brave-browser-apt-release.s3.brave.com/brave-browser.sources

sudo apt update

sudo apt install brave-browser

How can this issue be reproduced?

  1. On Linux Mint 22.1 Cinnamon, install Brave Browser with the following commands:
sudo apt install curl

sudo curl -fsSLo /usr/share/keyrings/brave-browser-archive-keyring.gpg https://brave-browser-apt-release.s3.brave.com/brave-browser-archive-keyring.gpg

sudo curl -fsSLo /etc/apt/sources.list.d/brave-browser-release.sources https://brave-browser-apt-release.s3.brave.com/brave-browser.sources

sudo apt update

sudo apt install brave-browser
  1. After installation, run sudo apt update.

Expected result: No warning messages produced.

Brave Version( check About Brave): Brave Browser 138.1.80.122

Additional Information:

@bingle

At: ‘https://itsfoss.com/fixing-target-packages-configured-multiple-times/’ - scroll down to: " What causes this issue?"