This brought back a few memories.
Despite their unique preferences and stylistic tendencies, all of the module authors I spoke with agree that there’s a difference between being a good Dungeon Master and writing a great adventure. A Dungeon Master should be concerned with creating a seamless and engaging narrative for their players. An adventure writer, on the other hand, needs to produce modules that will motivate those DMs, capturing their imaginations while leaving them room to embellish, adjust, and alter as desired.
— Total Party Kill - The Architects of Dungeons & Dragons by Wills Plummer
I had a short spell (groan) as a DM but I didn't have a full grasp of the rules at the time. Enjoyed my time as a player though.