Personally I use whatever term for game runner the game I'm currently playing uses. "DM" in D&D, "Storyteller" in Chronicles of Darkness, "Marshall" in Deadlands, etc.
It wouldn't bother me if someone used another term , but I like using the conventions of the active game.
— Dan Dillon (@Dan_Dillon_1) June 25, 2021
Yep. Turns out 280 characters just isn’t quite enough to list all possible TRPG game runner titles. ☺️
— Dan Dillon (@Dan_Dillon_1) June 26, 2021