  We comment on a claim that axion strings show a long-term logarithmic
increase in the number of Hubble lengths per Hubble volume [arXiv:2007.04990],
thereby violating the standard "scaling" expectation of an O(1) constant. We
demonstrate that the string density data presented in [arXiv:2007.04990] are
consistent with standard scaling, at a string density consistent with that
obtained by us [arXiv:1908.03522, arXiv:2102.07723] and other groups. A
transient slow growth in Hubble lengths per Hubble volume towards its constant
scaling value is explained by standard network modelling [arXiv:2102.07723].
