Zodios We live not in ideal world, and windows laptops especially old models allow to do a lot of tickering. In fact there could be a checklist to do X, Y, Z. Also, there is a contract between consumer and manufacturer, so in this case, you need to look for clearly stated promises such as flicker free etc. Also, it comes down to a price I believe with some exceptions (clearly M3 Macbook Pro was a fail), but XPS or top of a range MSI, Asus etc, where some of them have flicker free certification, would be a good start at least. But to come back to a main point, I do not believe, if you would not solve external irritants it will solve your problems, even if you become budhism monk on a mountain with best eye drops in the world, and best posture, and best food/liquid intakes.