Seven years of development have gone into the new Galaxy Z series, and the result is more than just a thinner body. With "Flex Titanium," Samsung is introducing an aerospace-grade material to foldable displays on a large scale for the first time, thereby making room for a more powerful battery, faster charging, and greater everyday practicality. A look behind the scenes of a technology that demonstrates how user feedback transforms into true engineering excellence, but Samsung remains adamant only when it comes to PWM.https://www.notebookcheck.net/Titanium-instead-of-plastic-How-Samsung-is-reinventing-its-foldable-phone.1347231.0.html
"There are no reliable medical studies that support a connection between the lower PWM frequency and complaints among users". What an idiot.
Thanks for asking him though!