Hello,
Thank you for your question.
Recently the integrity check application has been undergoing updates to further expand the number of devices compatible with windows 11. It is right that some of the processors considered old were not being recommended for using windows 11, however this has been changed often.
So, you shouldn't worry, as much as it doesn't seem to be "compatible" now, it will soon be, with the windows 11 integrity updates.
Also, I recommend that you post your question on the windows 11 forum
https://answers.microsoft.com/en-us/windows/forum?sort=LastReplyDate&dir=Desc&tab=All&status=all&mod=&modAge=&advFil=&postedAfter=&postedBefore=&threadType=All&isFilterExpanded=false&page=1
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