A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
Maybe this helps? https://forum.unity.com/threads/xr-interaction-toolkit-1-0-0-will-be-held-in-pre-release-for-the-2021-cycle.1179469/...
Same. it has changed a bit now. cant find it