Oldgens, or OGS, are the users that joined MSmg in from May of 2020 to March of 2021.
Semi-OGs are the users joined MSmg from March of 2021 to June of 2022
Midgens are the users who joined from July of 2022 to December of 2023
"Modern" users, or Contempgens, are the users who joined from January of 2024 to September of 2024
Newgens: October 2024 and beyond.