Filing a ticket based on this conversation here: https://github.com/openshift/enhancements/pull/1014#discussion_r798674314

Basically the tl;dr here is that we need a way to ensure that machinesets are properly advertising the architecture that the nodes will eventually have. This is needed so the autoscaler can predict the correct pool to scale up/down. This could be accomplished through user driven means like adding node arch labels to machinesets and if we have to do this automatically, we need to do some more research and figure out a way.