The 2020 release focused heavily on automation and ease of use: Variable Fonts:

It is important to note: It was only available via the Creative Cloud subscription.

For the global design community, specifically those working with Chinese, Japanese, and Korean (CJK) text, InDesign 2020 was a game-changer.

Added native support for Hue, Saturation, and Brightness (HSB) values in color selection, removing the need for manual conversion.