Gigabyte Z590 Aorus PRO AX - i7-11700K - BigSur 11.5.2

I’ve installed successfully BigSur 11.5.2 :
Motherboard: Gigabyte Z590 Aorus PRO AX
CPU: Intel Core i7-11700K (11th Gen, UHD 750)
Graphics Card: MSI RX 560 ITX 4GB OC
RAM: 2x8 GB - Corsair Vengeance 3600mh
Water Cooling: Cooler Master ML360L ARGB
Power Supply: Antec NeoEco750M 750 Watt
Hard Disk: WD 500 GB M.2 SSD for Mac, WD SATA SSD - 500GB for DUAL BOOT
Chipset: Intel Series 500 - SATA AHCI Controller
Wi-Fi: Intel® Wi-Fi 6 AX200 Support for 11ax 160MHz
Audio: Realtek® ALC4080 codec - Intel HD Audio
Controller Case: CoolerMaster D511 ARGB Mid Tower

All is working but

1. As I’m using someone’s EFI please help me to clean up to EFI folder as per requirements only.
2. Wifi is working using Heliport but not showing as actual active wifi same with Bluetooth some it works sometimes not Wifi/Bluetooth are not stable pls suggest.
3. Audio Device Names are showing Realtek USB 2.0 Audio (Not proper connected device name)
4. I want to change some icons of GUI, after making any changes to GUI it's set to command line OpenCore boot menu: BigSur
   What I've done:
   Downloaded the OpenCore 0.7.3 release from GitHub and added OpenCanopy.
   EFI to my EFI/OC/Drivers (tried multiple times just in case)
   Downloaded the OcBinaryData and replaced the resources folder in EFI/OC (tried multiple times just in case)
   In Config.plist I changed Boot->PickerAttributes: "17" tried also"7", Boot->PickerMode: "External" Boot->PickerVariant: "Acidanthera\GoldenGate" (tried using "Auto" as well)
   Added OpenCanopy.EFI to UEFI->Drivers
   After I reboot I simply get the same command line OpenCore boot menu.