nah saying megumi could never reach gojo isn't right
gojo in the flashback was 16 megumi now is 15, sure limitless and six eyes are way more broken but 10 shadows still have a huge ceilling and megumi can still have his own enlightenment moment like the honored one
gojo is the strongest six eyes + limitless user but at the same time no one has tamed mahoraga before so megumi can be the first zenin to do so pair up with the fact that we barely saw the last 3 shikigami do let alone the one left unrevealed that gives megumi a lot of room for growth to reach gojo we saw how monstrous the shikigami can be with huge ce imagine them being used in a domain (also megumi's conclusion that the head of the zenin used the ritual to take out the head of gojos clan is just words that come from insecurity)
i know the argument is coming so ill address it now, gojo beating megukuna doesn't mean gojo > full potential megumi because sukuna doesn't have a domain expansion suitable for the 10s while megumi does