DND_Reborn
The High Aldwin
While @Lanefan claiming the DM does all the work is an overstatement, the DM (or DMs taken in turn) still does the lion's share.
The DM, acting as storyteller, referee, etc. has to play all the monsters, set up the scenes, and so on.
Players play a character, maybe two or an NPC or sidekick, etc.
I am NOT saying players don't contribute, even to the narrative, by their actions.
And although a group might have different DMs, each acts in turn, and during that turn is doing more work than the players.
To help mitigate this workload, D&D suggests having one player act as bookkeeper, another as mapper, another can handle tracking initiative, you can even have one player "roll" for a monster when it attacks another player. There are lots of options to lessen the workload on the DM, because otherwise they are doing a lot more than the players.
Does the DM to all the work, probably not, but they typically do the bulk of it.

Regardless, when you are GMing you are still doing more work than the players for the reasons I expressed above, unless you only ever run 1 opponent, let each player make as many decisions about what is happening as you do, make refereeing calls by vote, etc.???
The DM, acting as storyteller, referee, etc. has to play all the monsters, set up the scenes, and so on.
Players play a character, maybe two or an NPC or sidekick, etc.
I am NOT saying players don't contribute, even to the narrative, by their actions.
And although a group might have different DMs, each acts in turn, and during that turn is doing more work than the players.
To help mitigate this workload, D&D suggests having one player act as bookkeeper, another as mapper, another can handle tracking initiative, you can even have one player "roll" for a monster when it attacks another player. There are lots of options to lessen the workload on the DM, because otherwise they are doing a lot more than the players.
Does the DM to all the work, probably not, but they typically do the bulk of it.
Pretty much ever DM has to improv at some point or another... Choosing to make it the only way you run is great if it works for you, others like to spend their time prepping more.I have been improv GMing since my 1st edition Shadowrun campaign when it first came out in the early 90s. It's the only way I run.

Regardless, when you are GMing you are still doing more work than the players for the reasons I expressed above, unless you only ever run 1 opponent, let each player make as many decisions about what is happening as you do, make refereeing calls by vote, etc.???