Q.What Are These Small White Lines Growing On My Plants?
Ive recently realized that my Kale plants are growing more of these small white lines (they don’t look like the typical leaf miner rows that ive seen online and I cannot find any pests, or larvae on/underneath plants. Thank you for your help.

Certified GKH Gardening Expert
I'm starting to wonder if there might be a little too much nutrients in that soil! Between this and your other post, it would seem that this could be related to nutrient burn. I would test your soil and treat, accordingly.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
This article will help to treat fertilizer burn:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-fertilizer-burn.htm
This collection will help you to grow Kale: