“Then one of the elders answered, saying to me, “Who are these arrayed in white robes, and where did they come from?” And I said to him, “Sir, you know.” So he said to me, “These are the ones who come out of the great tribulation, and washed their robes and made them white in the blood of the Lamb. Therefore they are before the throne of God, and serve Him day and night in His temple. And He who sits on the throne will dwell among them. They shall neither hunger anymore nor thirst anymore; the sun shall not strike them, nor any heat; for the Lamb who is in the midst of the throne will shepherd them and lead them to living fountains of waters. And God will wipe away every tear from their eyes.””What scripture speaks of this conversion during the trib?
Revelation 7:13-17 NKJV
https://bible.com/bible/114/rev.7.13-17.NKJV
So, if the raptured are taken before the tribulation there are a great many who turn to Christ during it. I’d imagine quite a few family members, friends, work colleagues etc who doubted us as Christians will realise we were right all along. Probably quite a few from Israel too. Sadly, there will be much suffering for them first.