this started a couple of weeks ago,
when ever i start my computer it always starts up with an extra user that i did add with the user name “chill” but when go to other accounts in settings i only see my other one not this new one and my windows defender says no threats after a quick scan
It means someone called chill logged on to your device at some point, possibly with a Windows cloud account (assuming it’s just a personal, not a work device)
You may have a profile in c:\users\chill corresponding to that logon.