I am assuming you know about DISM commands and SFC commands which should fix 90% of the problems a clean install will fix. For the other 10% they cant fix you can always download the windows 10 ISO and do a repair install. Using a clean installation is always a good idea, but you don’t need to start fresh in order to achieve this. Just remove any manufacturer software like HP or Dell utilities, remove any garbage or third party apps and antivirus, windows 10 defender is good enough for most people. Good examples of garbage are CCleaner, IOBit anything, diskdefrag utilites, programs that claim to speed up your PC basically anything your buddy that “knows computers” told you would help probably doesn’t. Finally use startup in task manger to disable anything that isn’t required by the system. You don’t need skype on startup, you don’t need discord, you don’t need itunes anything, steam doesn’t need to start with the computer, a good rule of thumb with this is if it doesn’t say intel, Realtek, AMD or Microsoft corporation under the publisher list, you probably don’t need it on startup, just disable that stuff and it will help.
But to be clear, the CTD’s appear to be related to something else, I believe the culprit is live traffic and the way it is cached in the memory creating an overrun. So a problem with the software is most likely.