Report of the Snowmass 2021 e${}^{+}$e${}^{-}$-Collider Forum

A summary of the Snowmass 2021 e${}^{+}$e${}^{-}$-Collider Forum discussions, white papers submitted to the Snowmass 2021 community study, submissions of the Energy Frontier (EF) subgroups and the Accelerator Frontier (AF) Integrated Task Force (ITF) are presented.