In the article by Tavis O. linked elsewhere in comments, he suggests disabling the FSRM CPU feature only as an expensive workaround to be taken only if the micr

In the article by Tavis O. linked elsewhere in comments, he suggests disabling the FSRM CPU feature only as an expensive workaround to be taken only if the microcode can't be updated for some reason. That suggests to me that he, at least, expects the update to do better.