Can I get canon speedlight 430EXii to work as OCF slave with X1R-c (receiver) attached to it with Canon R6 attached with X2T-c (trigger)? May be A Godox AD200 pro as Master TTL
Could you explain in detail what you wish to do, I've tried to decipher your statment with no success.
I don't think Godox trigger can communicate with Canon flash. Usually flashes and triggers use proprietary communication protocols and are not compatible with other brands equipment.
I think it should work as it used to with Yongnuo and Pocket wizard trigger and receivers.