Fwiw, i worked with a Lubuvitcher when the last Lubuvitcher Rebbe died. And i offered him condolences. And he thanked me, and said that when a great man dies his soul is everywhere.
That’s a pretty abstract form of afterlife to believe in.
“I believe by complete faith that there will be a resurrection of the dead at the time that will be pleasing before the Creator, blessed be His name, and the remembrance of Him will be exalted forever and for all eternity.”
-The 13th principle of [Jewish] faith, by Maimonides