iserith
Magic Wordsmith
A complete lack of downtime would indicate that the DM provides lots of adventure hooks that are available for the PCs to pursue like the items on a check-list. When they’re done with one adventure, they tell the DM which adventure they’re going on next. Is that about right?
Speaking for my current Eberron campaign, we don't use downtime activities because it doesn't fit with the pacing and focus of the adventures as I see it. Time passes between cases the PCs take up, but we don't fill in that time with downtime activities. The focus of the game is really on the amazing stuff the PCs do, not what they do when they're not doing that amazing stuff. That's better for other campaigns in my view such as the one I'm planning next (see above).