Alright friend!
Penguin thinking:
That means it can be fair to suggest that the issue is probably not user account related thanks to this test:
Feel free to delete the recently created user: Windows + I, navigate to accounts, find the selected user and remove account.
Next move would be to start taking a look at hardware, and Windows 11, security certificates, TPM(Secure boot) and BIOS.
1: Make sure to update all hardware related drivers, especially Chipset driver.
Restart PC after driver updates. (Otherwise the registry keys in Windows won't properly update)
2: If game still refuses to start try unplug everything that isn't necessary to have connected to the PC while trying to launch the game.
Some users have earlier reported that even having a USB-Drive connected to the PC made Javelin Anticheat block the game process, (Fully why is unclear over here, but has been reportedly so)
3: Close any background processes and game overlays that might be interfering with/or getting wrongly flagged by Javelin Anticheat, RGB control software on PC? Steam overlay, Microsoft Gamebar overlays, NVIDIA overlay/or similar if you have
3: Check for any windows updates, especially security updates.
If you're still not able to launch the game👇
4: Penguin can recommend checking your motherboards manufacturers website to see if they have been pushing out a newer BIOS version for your system. Security Certificates also running out later this year according to ASUS website.
Only follow your motherboards manufacturers steps if available
Many Thanks!
Penguin