Tech changes. Trappings change.
People, though? People are the same, regardless of time & place. They all need food & shelter. Rest & recreation.
The tech- be it mundane, Sci-Fi, or fantastic magery- mainly affects how we do what we do.
I've realised recently that gods and religion is a big difference for me. Sci-fi, to me, doesn't do religion and certainly doesn't have gods. Traveller in its general setting has no mention of overarching religion IIRC - although individual planets can have their own local beliefs and potential religion-related governments. I guess I assumed that the many parallel version implied that there were all equally wrong.
I've been running a few Numenera sessions and a player asked what the people believe in. I realised that I had ignored the question as, to me, Numenera-as-Sci-fi made that irrelevant. But - actually I have to agree monkey-brains will probably invent tripe to believe in whatever the time or place.
This is also why Starfinder is definitely Science Fantasy rather than Science Fiction: not the goblins or tech or the magic/psionics - but the gods.