Hi qomae,
Sorry to hear Apex has been crashing after the intro since the Season 30 update, especially after you’ve already tried so many troubleshooting steps.
Since another account launches normally on the same PC and game installation, that suggests the issue may not be caused by the installation itself. It may be related to something specific to the affected account or profile data.
One additional thing worth trying is completely closing any overlays, key-remapping software, and unnecessary background applications before launching Apex.
You can follow this guide here: How to close background applications
Could you also let us know whether you receive any error code or error message when the affected account crashes?
If possible, it would also be helpful to test the affected account on another PC to see whether the same crash happens there.
Thanks for reporting this. Hopefully these details can help narrow down what’s causing the account-specific behavior.