Inkscape 1.3, in particular, can open many Adobe Illustrator files and is completely free. It lacks some advanced features (like Image Trace or pattern brushes), but for 90% of vector tasks, it works excellently.
: For high-stakes design or academic publishing, services like Editage provide professional proofreading and editing to ensure your accompanying text is as polished as your visuals. Adobe Illustrator 2020 24.0.2.373 Multilingual Adobe Illustrator 2020 Download Google Drive
Be careful: Adobe does not officially support transfer of individual CC subscriptions. However, some resellers offer “lifetime CS6” licenses. These are old (2012) and will not run on macOS Ventura or later. Inkscape 1
If you ignored warnings and already ran an installer from an unknown Google Drive link, follow these steps immediately: but for 90% of vector tasks