I have a very similar issue, yet somewhat different. My PC always froze on start-up and lasted for about 1 minute until PC resumed as normal.
Just had to remove Armoury Crate and it's associated components like you. PC has stopped freezing, I have tried to solve this issue for countless months with different methods and it always takes me back to Armoury Crate, hope this is resolved soon by ASUS but I don't feel confident. Bumping here so that the others may see this.
Specs:
ROG Strix X570-E Gaming
msi RTX 3080
AMD 9 5900x
32GB Corsair Vengeance @3600mHz