NB! It seems this console command is not compatible with CS2.
Command Profile

NEXTLEVEL

CS:GO

This command will make the server load/progress to the specified map at the end of the current game. In other words, this command sets the next map in the map cycle.

Syntax
nextlevel [Map Code]

Description

This command will make the server load/progress to the specified map at the end of the current game. In other words, this command sets the next map in the map cycle.

Syntax And Arguments

nextlevel [Map Code]
Map Code The map code of the next map to cycle to. View our map code list for map codes.