Are you saying that the Prophets, of whom John the Baptist is the greatest, did NOT have the Holy Spirit?
No. Don’t think I am the one defining everything in a nice neat box.
Most say OT saints were not born of God, of the Spirit, born again, regenerated. They say this strictly a NT dispensation. Yet, as you point out, there are cases in OT of similar phenomen. There are cases of saints being not just empowered by the Spirit but indwelt. There are cases of OTsaints going to heaven, not Paradise.
Yet, sometimes the exceptions prove the rule. So some in OT may have experienced similar spiritual “blessings” that we do today. The difference maybe in the breadth of the dispensation, or permanence of it. Indeed He will pour out His Spirit over all mankind, Jew and Gentile alike in last days . Jesus also said the least of these would be greater than John.
So you point out Moses or John the Baptist or even Mary. Yet why did Jesus tell the apostles the Spirit was
with them but soon would be
in them? Why did He tell to wait for " empowering".
So you have to define " having the Holy Spirit" , as to with you and or in you. And why did John doubt after he was in prison, whereas the apostles were only emboldened and “in the Spirit” whilst in prison.