In addition, touch screen latency is something that never gets tested but is a huge factor in how the device feels to use. Some phones have terrible latency and its impossible to find out until you own the device.
Absolutely, it's actually incredible how little real-world information there is on latency. The last useful articles I can find are from 2-3 years ago!
Where is Microsoft's 1ms latency touch screen from 2012? https://www.engadget.com/2012/03/10/microsoft-cuts-touchscre...