Here's some articles written about it as well from NN group if you're interested
https://www.nngroup.com/articles/vertical-nav/
Here's an article on user attention on website predominantly leaning left as well as a related topic
https://www.nngroup.com/articles/horizontal-attention-leans-left/
Here's some articles written about it as well from NN group if you're interested
https://www.nngroup.com/articles/vertical-nav/
Here's an article on user attention on website predominantly leaning left as well as a related topic
https://www.nngroup.com/articles/horizontal-attention-leans-left/