[4] There is a massive difference between having a portion of the Holy Ghost, and being filled with the Holy Ghost, a huge difference, but even then, the rules of engagement remain the same. The freedom of choice remains intact, and The Spirit only works according to your desire and consent. This means literally that any person who was filled with the Holy Ghost can sin, if they so choose to do. They should not, because it is quite dangerous, but they could, if they choose to do so.
The Holy Spirit doesn’t inhibit persons from committing sin against their will, whether they are filled, or whether they have just a portion. The sealing work you read of in Revelation 7 is not a work of prevention by The Holy Spirit, it is a work of confirmation, meaning that your choices for Christ, which you have made for your entire life, are sealed for eternity, for if you were to stay the course with the Holy Spirit, there would come a time when the real you, is Christ formed within.
However, your freedom of choice remains entirely intact, at every stage of the Holy Ghost you receive, whether it is an initial portion, a small portion, a big portion, or the fully loaded stage. Acts 2:1 And when the day of Pentecost was fully come, they were all with one accord in one place. 2 And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. 3 And there appeared unto them cloven tongues like as of fire, and it sat upon each of them.
Acts 2:4 And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
May God add His blessing to the study of His word. “Good night” and God bless!