Seems a little dumb. Both Intel and AMD are international companies. Heck some Intel CPUs may never see an American Engineer working on them. Dumber part is that Russian Computer Scientists tend to just take what someone else did and integrate into their systems without first looking it over. For instance those Baikal chips use a significant amount of controllers, languages, and instruction sets written by US Computer Scientists.
Its much less likely that an international company that does business in liberal countries would have government controlling elements written into it. Its also even more unlikely that these companies would voluntarily allow this as it would slow down their chips. Then its drastically more unlikely that the US can force these chip makers to do such since non-compliance is not criminal.