Newly built PC Keeps crashing or restarting, replaced parts, can't figure it out

Hello anyone who can help!

For months I've been fighting with a PC I built for a family member. I was having a few issues, sorted that out and waited a few weeks, new parts are installed. The PC Ran too hot I discovered after playing Expedition 33, great game, but PC became a fantastic space heater. Discovered there was an issue apparently with some early 14th gens trying to overclock itself in a loop because of it thinks the temperature isn't too high (I'm sorry idr the setting, Thermal something IIRC.) Through a lot of troubleshooting I was able to move on having the CPU GPU & M.2 replaced. The parts & system info is below:

CPU Intel i7-14700K 3400Mhz 14th gen

MB Z790 GAMING WIFI7

GPU Radeon RX 7800 XT

RAM Corsair Vengeance 32gb(2x16) DDR5 4800 (CMK32GX5M2A4800C40)

M.2 TForce g70 pro 1tb

It seemed to be doing ok but they approached me and it's been constantly crashing just trying to play simple, little-demanding games even.

I thought I would be able to upload a saved Event Viewer here but I don't see the option. The main things I see (following reboot) is the following:
Lvl: Error Source BTHUSB General The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded. Event ID 17
Lvl: Critical Source Kernal-Power General The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. Event ID 41
/This is the end of postboot (10:43PM an hour later)

**Everything following this line are the last System events before it crashed (9:42 & 9:43pm)

Lvl: Warning Source DistributedCOM General The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID

{00000000-0000-0000-0000-000000000000}

and APPID

{15C20B67-12E7-4BB6-92BB-7AFF07997402}

to the user STEVEN\Professor SID (S-1-5-21-2892868293-1707851797-3881920901-1000) from address LocalHost (Using LRPC) running in the application container DuckDuckGo.DesktopBrowser_0.165.4.0_x64__ya2fgkz3nks94 SID (Unavailable). This security permission can be modified using the Component Services administrative tool. Event ID 10016

Lvl: Warning Source DistributedCOM General The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID

{2593F8B9-4EAF-457C-B68A-50F6B8EA6B54}

and APPID

{15C20B67-12E7-4BB6-92BB-7AFF07997402}

to the user STEVEN\Professor SID (S-1-5-21-2892868293-1707851797-3881920901-1000) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool. Event ID 10016

Lvl: Warning Source DistributedCOM General The application-specific permission settings do not grant Local Launch permission for the COM Server application with CLSID

Windows.SecurityCenter.WscDataProtection

and APPID

Unavailable

to the user NT AUTHORITY\SYSTEM SID (S-1-5-18) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool. Event ID 10016

Lvl: Warning Source DistributedCOM General The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID

{9EA82395-E31B-41CA-8DF7-EC1CEE7194DF}

and APPID

{2ED83BAA-B2FD-43B1-99BF-E6149C622692}

to the user NT AUTHORITY\NETWORK SERVICE SID (S-1-5-20) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool. Event ID 10016

Lvl: Error Source EventLog General The previous system shutdown.... Event ID 6008

Lvl: Error Source EventLog General The previous system shutdown.... Event ID 6008

Lvl: Error Source EventLog General The previous system shutdown.... Event ID 6008

I have trouble with memory, it's a struggle so I apologize if I've forgotten something I should have added. I know I've forgot troubleshooting, there's just so many that we go through troubleshooting these things, and it's been months at this point. It's been extremely disappointing what this machine's been doing and I'm ready to set it on fire. IDK what else to do at this point. I'm extremely lost.