I think that there’s a reasonable argument for a separate home partition on a multiuser system. Means that users can’t fill up root.

But a lot of systems aren’t multiuser these days.

EDIT: Honestly, my biggest partitioning irritation these days is that the Debian installer makes it a pain in the rear to have a larger /boot if you’re also doing an LVM-based install; the default is unreasonably small these days.