[dvdkon]

Mild spoilers for The Expanse: It does have FTL travel, but it is presented as alien and has a limited impact on the day-to-day lives of characters. I get the feeling this was done for narrative reasons primarily, but it helps with "sci-fi hardness".

Generally I think the impact of instant communication and near-instant travel (or lack thereof) is not talked about enough. Most sci-fi stories derive from the present day, and keep this aspect of today (as do many fantasy stories, interestingly), but it's a narrative choice with large impacts.