I used to work with a group that created training materials using Flash. We had a bunch of animators that knew nothing about coding, but they could produce all of these amazing animated videos using Flash.
They could also produce interactive animations. One job we did was creating 3d renderings of printers. The printers could be torn down in the flash app to the smallest screw. A technician could choose what they wanted to do to the printer, and the flash movie would show them step by step in full animation what to do. At any time they could rotate the printer in all an axes to view different angles. It was amazing. And it was animators who knew nothing about code that built it all. The things they could do you just don’t see anymore.
I remember another project we worked on that had these mini games you could play in place of being multiple choice quizzes.
All of that is just gone. There was so much animation and interaction and fun that has been replaced with boring, text, images, and videos.
The best part was, it was all vectors, so the file sizes for even long animated movies was incredibly small. Back in those days we had very low bandwidth, but flash worked great. We had retailers in Asia that consumed our content no problem. Now our content is mostly text, images and videos. Those same retailers have higher bandwidth, but really struggle because the files sizes are enormous compared to flash.