disable steam startup text when using the 'steam' command

I am creating a program that accesses the steam files and launching games while steam is running, i have that down but i don't know how to disable the steam startup text. here is my code so far in case that is needed, my code is python. Ubuntu version is Ubuntu 21.04

import os

import time

user = 'user'

password = 'password'

software = 's'

yes = 'y'

Userinput = input('username: ')
if Userinput.lower() == user: Userinput = input('Password: ')
if Userinput.lower() == password:
game = input('would you like to play steam games? Y|n ')
if game.lower() == yes:
os.system('steam')
game = input('would you like to play volcanoids? Y|n ')
if game.lower == yes:
os.system('echo volcanoids')
else:
game = input('would you like to play Pulsar? Y|n ')
if game.lower == yes:
os.system('echo Pulsar')
else:
Userinput = input('would you like to play Minecraft? Y|n ')
if Userinput.lower() == yes:
os.system('/home/sterling/.minecraft/launcher/minecraft-launcher')
else:
print('continue with whatever you where doing')
time.sleep(1)
os.system('clear')
else:
print('please reenter your credidentials.')
time.sleep(1)
os.system('clear')
os.system('python3 games.py')
else:
print('please reenter your credidentials.')
time.sleep(1)
os.system('clear')
os.system('python3 games.py')