sudo apt install apt-transport-https curl
sudo curl -fsSLo /usr/share/keyrings/brave-browser-beta-archive-keyring.gpg https://brave-browser-apt-beta.s3.brave.com/brave-browser-beta-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/brave-browser-beta-archive-keyring.gpg arch=amd64] https://brave-browser-apt-beta.s3.brave.com/ stable main"|sudo tee /etc/apt/sources.list.d/brave-browser-beta.list
sudo apt update
sudo apt install brave-browser-beta