Linux Mint 20.2 is a long term support release which will be supported until 2025. It comes with updated software and brings refinements and many new features to make your desktop experience more comfortable.
Although they're technically different than APT updates, they are presented to you in a very similar manner. You can see the same kind of information for them, and enjoy the same features as you did already, such as the ability to blacklist a particular spice or a version of a spice.
You can also automate spice updates. In automatic mode spices are upgraded shortly after you log in and the desktop environment then gets refreshed. This is barely visible (Cinnamon restarts itself seamlessly, you just see the mouse cursor get reset on the screen when this happens) and a notification pops up to show you what was upgraded.
In the past, available updates were simply indicated by a little orange dot on the Update Manager's icon in the system tray and could go unnoticed for long periods of time. In Linux Mint 20.2 the Update Manager is now able to remember how long each update has been available for, how many days the computer was ON during that time and assess whether or not a notification would be welcome to remind you of available updates.