Save the worlds
Save every world and every online player to disk now, as /save-all does.
A Minecraft element (a step) in Server & admin. Needs the Basic plan or higher to go live; building and testing are free.
Example
Every 15 minutes → Save the worlds.
Also called
save, save all, save worlds, backup, flush
Works as a data pack?
No. This one needs the Elementium plugin on a Paper server.