Windows 11 Insider build allows you to fully reset your OS without a USB, even when it won't boot

It's called 'cloud rebuild' in the Windows Recovery Environment.
XDA Developers

I keep a bootable USB with 10 free tools on it, and it has fixed every PC problem I have had this year

I keep a bootable USB drive, a one-stop solution for the most common system problems. These tools can analyze hardware, ...