There is no facility to smooth out keyboard input such that it better emulates a stick. The old Unity.Input code used to handle this via making it an axis. I'm in 2020 LTS and using Input System 1.1.0pre6 (because I had to up from the "verified" 1.0.2 to fix bugs with cursor lock/hide). Is this functionality planned or included in newer Input System releases? If it is not I will make an argument for why it should be considered.