AKAWN

Starting with SQL Server 2016, this setting is enabled by default for tempdb.

Below is a run down on how it works.

/* use tempdb */
USE [tempdb]
GO

/* file groups shows is_autogrow_all_files as enabled*/
SELECT
 name
,is_autogrow_all_files 
FROM sys.filegroups;

/* current size */
SELECT 
 name
,physical_name
,type_desc
,(growth* 8)/1024 AS growth_mb
,(size * 8)/1024 AS size_mb
FROM sys.database_files
ORDER BY name;

/* change 1 file size */
ALTER DATABASE [tempdb] MODIFY  FILE ( NAME = N'tempdev', SIZE = 10MB );

/* current size */
SELECT 
 name
,physical_name
,type_desc
,(growth* 8)/1024 AS growth_mb
,(size * 8)/1024 AS size_mb
FROM sys.database_files
ORDER BY name;

/* grow database */
CREATE TABLE #t1 (c1 nchar(4000));
GO
INSERT INTO #t1 (c1) VALUES ('1')
GO 5000

/* current size */
SELECT 
 name
,physical_name
,type_desc
,(growth* 8)/1024 AS growth_mb
,(size * 8)/1024 AS size_mb
FROM sys.database_files
ORDER BY name;

Take away from this should be to ensure that your tempdb data files are the same size on startup and use the same growth settings.

You can use sys.master_files to check your tempdb initial size settings.