How to change CPU name in About my mac

So for the past 1-2 weeks, I've been searching for a way to change my processor name, this is what about my mac shows just 3.8GHz I've tried this guide and this CPU-name py script,

nether has worked for me, I've even tried other ways I found but ended up breaking my Hackintosh so I've reinstalled and I'm not sure what to do anymore.

I'm running in a VM using Proxmox if it matters, I need this because have to contact apple about iMessage, willing to try anything at this point.

Thanks.