I installed it through apt with just sudo apt install virtualbox-7.0. I also downloaded the deb file from their website but, at least when installed through apt, it just ignores it and uses the version from Mint’s repository anyways.
Edit: Because I just checked and you can’t install it directly like that anymore, I first tried installing VirtualBox a few months ago, with an older version of Linux Mint. When I tried installing it several hours ago, it was with the deb file but for some reason apt still selects a different version when it actually installs it.