The program is PC Health Check
You can learn more about it from : How to check if your PC can run Windows 11? (thewindowsclub.com)
I am not connected with thewindowsclub.com but it has some helpful Window s information and I have not had a bad download from them. I believe the link they give is to the actual Microsoft site.
Please be aware. The PC Health check may not be accurate on some devices. They recently made some changes to better ID TPM on laptops but some issues persist. On my device it ID's the build number as one much older than on the machine.
Am going to guess that by next week they will have that ironed out and we will get more accurate results.
Suggest checking the box to save it to your desktop so you can periodically run the test .
There are many other useful tips in here in community that will help.