Q.ficus tree looks really branchy
I have had my ficus tree about 10 years. It loses leaves in the winter. It sets near french doors but not real close to doors. But I have noticed it looks really light in the body of tree. It has a lot of leaves near 3-4 inches from the ends but the middle is very branchy. All you see is branches. It is a wide tree but is not sure with leaves. I have looked very well and see no insects and my leaves are dark green no spots, white leaves. Any suggestions?
A 10 year old ficus! Wow, that's impressive!
I think your ficus may need just a new pot, and some new potting soil added to the pot. Don't go to much larger, just 1to 2 inches larger.
Then care for your plant as you have been.
Here is a link to ficus care.
https://www.gardeningknowhow.com/houseplants/ficus/ficus-tree-care.htm