You can input a letter in a number input (e), however the interesting part is how Chromium defines the input’s value IDL attribute. Chromium evaluates the user-inputted string to either a floating point number or an empty string, which can cause state problems when the user inputs an incomplete number with an exponent (2e).
This leads to many developers believing there’s a bug in the framework/browser they’re using, when in reality it’s the result of a less-than-ideal HTML spec.
