What I have an issue with is that their own application indicated originally that my system did not meet the requirements and this was because UEFI / PTT aka TPM was disabled in the BIOS as it was never used. It also appears the PC Health Check has sent data to Microsoft before these were enabled and then automatically classified me to another Insider group based on data which has now changed. Nowhere did I see any notification that the initial data would be used to classify your computer system and be changed to another Insider group based on the initial machine configuration.
Due to the variety of hardware components in the wild Microsoft really need to get the PC Health application updated asap and make sure it explains why the outcome has occurred and the reason behind it. I can jump between all however I was not willing to accept Microsoft's assumption that my system does not have PTT / TPM 2.0 support wherein they indicate :-
"We are moving PCs that do not meet the minimum system requirements for Windows 11 in the Beta Channel to the Release Preview Channel." and then it states "Based on our data, your PC doesn’t meet the minimum system requirements. To ensure a better flighting experience, it will be moved from the Beta Channel to the Release Preview Channel automatically so you can continue enjoying the Windows 10 Insider Preview build features." so in effect they are making initial system check assumptions and then apparently changing the insider group based on this initial incorrect data with no retort or review process.