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

MP_MOLOTOVUSEDELAY

CS:GO

This command sets the number of seconds that a player must wait after acquiring a molotov before they can use it.

Syntax
mp_molotovusedelay [Seconds]

Description

This command sets the number of seconds that a player must wait after acquiring a molotov before they can use it.

Syntax And Arguments

mp_molotovusedelay [Seconds]
Seconds The amount of time, in seconds, that a player must wait before being able to use a molotov they have just acquired.