Use the shell:startup command mentioned above.
Press Win + R , type shell:common startup , and hit Enter. How to Add Apps to Autostart: A Step-by-Step windows 11 autostart folder exclusive
Some apps (like Spotify or Steam) have their own internal startup toggles. These can sometimes override Windows folder settings. Check the app’s internal "Preferences" or "Settings" menu. Use the shell:startup command mentioned above
This is the most common location. Items placed here only launch when you log into your account. type shell:common startup