They published a 40-page "Getting Started with Illustrator 2021" PDF covering artboards, basic shapes, and the Pathfinder tool.
Later 2021 updates introduced a reimagined 3D experience with real-time feedback and Adobe Substance materials for realistic textures. Essential Tools for Beginners Adobe Illustrator Tutorial - CLaME Adobe Illustrator 2021 Tutorial Pdf
2021 solidified the move to the cloud. A good will explain how to save work to the cloud, allowing you to access designs from iPad to desktop, and crucially, how to use the Version History feature to revert to previous saves—a lifesaver for professional workflows. They published a 40-page "Getting Started with Illustrator