“The current study examined the effects of visual, auditory, and haptic feedback on VR text entry performance and perceived mental workload across two experiments. In Experiment 1, the feedback was presented as users were pointing from one key to another, dubbed pointing feedback. … In Experiment 2, the feedback was provided when users selected the keys by pressing the trigger on the controller, dubbed selection feedback. … These results indicate that the usability of VR text entry tasks changes as a function of when and how feedback is provided.”

Find the paper and authors list in the International Journal of Human–Computer Interaction.