An article by Linux Capable describes how to use the VirtualBox repository to install the most recent, most current version of VirtualBox on Linux Mint 21 or 20.
How to Install VirtualBox 7.0 on Linux Mint 21/20
Commands to install VirtualBox 7.0 on Linux Mint 21 or Linux Mint 20 using the VirtualBox repo for the latest up-to-date version.
