I would say that all are saved through the work of the Holy Spirit, but not all are filled with (sealed by) the Holy Spirit.
There is too much disparity among Christians for me to think otherwise.
In the Laodicean church there were "lukewarm" believers and "overcomers" (
Rev 3:14-22)
Paul speaks of those whose lives are built on truth and those who will be saved but "so as by fire".
1 Cor 3:11 For other foundation can no man lay than that is laid, which is Jesus Christ. 12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; 13 Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is. 14 If any man's work abide which he hath built thereupon, he shall receive a reward. 15 If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
Do you think everyone who goes through the Tribulation takes the 'mark'?