gigabyte aorus x470 gaming 7

Hi everyone! It's been years since I got my PC and it has the F5 BIOS still. Seeing all the new BIOS updates, I'm confused if I need to update and if so, to which version. The reason behind this is because I am going to upgrade my RAM to 64 GB (2x32GB sticks) 3600mhz. Looking at Aorus' website...

I bought the Gigabyte aorus x470 gaming 7 on Facebook marketplace for a new build. I'm trying to install a Western Digital blue SN500 NVMe 500gb M.2 drive. The sockets are shown in the picture (without the heat sinks) . The motherboard didn't come with any stand-offs. Does anyone have...