If you run the Windows 11 compatibility testing tool from Windows 10 and it indicates that everything is fine except for the CPU, you should have no issues doing a fresh install of Windows 11 version 24H2. You must have the latest bios installed as well as TPM 2.0 configured in your UEFI. In addition, make sure you have at least 32GB (depending on what types of apps you’re running) to run Windows 11. Having an NVME M.2 1TB SSD drive or larger as your boot drive would be best. Since you already ordered these new computers, probably what I’m saying here is a moot point anyway.
I am so sorry that this happened to your company especially spending thousands on new hardware when it might not have been required. Unfortunately you didn’t see these Microsoft threads / messages until recently.
Hope this helps.
Chuck