Instagram is working hard to apply vertically long photos to posts like Lils. Through multiple tests, we tested the ratio of images exposed to the feed to 9:16. However, the images were not displayed in the proper format because there were many photos with 1:1 ratio and 4:3 ratio, which were not suitable for a long vertical format. Also, a light gradient was applied over the image to display the interface, which also affected the quality of the image.
The experience of putting filters on 1:1 square photos and uploading them to the Internet was a powerful driving force for Instagram to become a service that dominates the world. Take pictures to share your daily life, take selfies anytime, anywhere, and anyone can create their own brand. I can't wait to see how it will change in response to TikTok's experience of going from a strong challenger to a menacing competitor.