Debian/Ubuntu and other derivatives
sudo mkdir -p /etc/apt/keyrings
sudo wget -qO /etc/apt/keyrings/teams-for-linux.asc https://repo.teamsforlinux.de/teams-for-linux.asc
echo "deb [signed-by=/etc/apt/keyrings/teams-for-linux.asc arch=$(dpkg --print-architecture)] https://repo.teamsforlinux.de/debian/ stable main" | sudo tee /etc/apt/sources.list.d/teams-for-linux-packages.list
sudo apt update
sudo apt install teams-for-linux
RHEL/Fedora and other derivatives
curl -1sLf -o /tmp/teams-for-linux.asc https://repo.teamsforlinux.de/teams-for-linux.asc; rpm --import /tmp/teams-for-linux.asc; rm -f /tmp/teams-for-linux.asc
curl -1sLf -o /etc/yum.repos.d/teams-for-linux.repo https://repo.teamsforlinux.de/rpm/teams-for-linux.repo
yum update
yum install teams-for-linux