The problem can be identified using "WhoCrashed," ... also the same DEVS offer free of charge "LatencyMon," which may assist you further in optimising your system. But make sure you know how to use them by looking them out online or however you choose to as there are couple of nuances you need to know beforehand.
One more thing, especially in WIN11(though not as much in WIN10... but still), if Discord (DS) is being used during Valorant, then you should preferably set the following in DS -> settings -> voice & video -> switch off "debug logging" ... and similarly in DS settings -> advanced -> switch off "hardware acceleration." - just some recent working fixes for DS.
Lastly, try to reproduce the condition that existed at the time of the crash and then deduct one at the time, asking... "were there any other apps open while Valorant was running, such as DS or the browser and so on?" If... then, "Could some of those app's driver(s) or service(s) cause the clash/issue?" This way, you may eventually encounter system-specific issues that are only unique to your current setup +"LatencyMon" app will help you in that as it goes in hand with similar "top-down" system investigations.
Still the number of potenial causes could be large... Best of luck!
EDIT: Added DS temp fixes and some suggestions.