The oblique styles simply slant the upright styles and do not change the letter forms. However, these style (except for the black-oblique style) contain three sets open-type stylistic alternatives that can make the oblique styles look more like true italics by altering letters a, f, i j, and l, as illustrated below.
In 2019 I created a 30-font family of sans-serif faces called Yassitf that was also intended to be a versatile family useful for both text and display. Below is a comparison of it and AndrewAndreas, with AndrewAndreas first and Yassitf below it. Two weights are used for the comparison. There are many small differences.
The revised AndrewAndreas family is available on myfonts and fontspring.