YS.
In other words, the op is incorrect.
Personally, the very concept of דירה בתחתונים is not Chabad, many others have been focused on that as well, it’s not about a better “spot” in gan Eden.
Although, you will definitely find that distinction in old school classic literature explaining the diff between chassidim and misnagdim. E.g. one of the sayings: “a misnagid is afraid of the ‘Shulchan Aruch’ whereas a Chassid is afraid of Hashem”…
Are those accurate assumptions?
Perhaps in some cases and many cases certainly not.
Some sayings would go the other way around…
Also, when saying “polish chassidim” we need to be aware that there were diff approaches there as well, like Peshischa/Kotzk were diff as they were focused and more on intellect and perfection..ואכמ”ל