I would like something opposite to
/setworldspawn, a command that would return me current world spawn location.
I tried getting
SpawnZ nbt data from a non-existing player, but it seems that this is not allowed.
I tried a few things and I'm pretty sure the only way is setting the player's individual spawn point to something invalid (like 0 0 0), setting
gamerule spawnRadius to 0, killing them, waiting until they respawn (like this) and then checking their coordinates.