Q.African Violet
My plants are forming tightly squeezed leaves which makes it difficult for the flowers to bloom. The plants are so tight that they are forming mounds.

Certified GKH Gardening Expert
This is how they will grow when they get crowded. It is best to have one per container because of this.
You may have to transplant, carefully, into their own containers. Giving a little less light can make them stretch a little, as well.
Here is an article that will help you to care for the plant to its potential:
https://www.gardeningknowhow.com/houseplants/african-violet/african-violet-care.htm