When will T-Mobile convert their RCS platform to the Jibe Platform (Google) for RCS?

My group, it's a mixture of both. Group chats if a person drops from it means they dropped out of RCS. You have to add them back every time too. In single chats, if they drop there is no notification unless one sends something and you still haven't reconnected. I have Jibe and I've dropped from our family group about 3 times in the past week. I listed my kids and ex-wife their devices earlier with what device and server. Others like in-laws, grandparents, and such are from other countries. I know they use Jibe with Samsung, or Pixel devices(I bought them for presents over the past 3 years or they live in Korea and only buy Samsung).