In previous versions, data was sent across lanes in a strictly linear fashion. MSO allowed the data to be split across multiple "logical" streams. This feature was designed to simplify the internal routing of data within the display panel itself.
The Embedded DisplayPort (EDP) 1.4 specification is a comprehensive document that outlines the technical requirements for the design and implementation of EDP interfaces in display systems. The specification is maintained by the Video Electronics Standards Association (VESA) and has undergone several revisions since its introduction. edp 1.4 specification pdf
For variable refresh rate (VRR) or FreeSync over eDP, this section explains how to dynamically adjust vertical blanking intervals to avoid tearing. In previous versions, data was sent across lanes