I think you have a misapprehension of the genre here; science fiction isn't 'fiction with lots of science in it'; it's fiction that deals with potential future possibilities [1], and--deeper than that--fiction which uses those possibilities to explore explore current society/ideas.
There's no requirement to centrally feature technology, and it would be a weaker genre if there was.
There's no requirement to centrally feature technology, and it would be a weaker genre if there was.
[1] https://en.wikipedia.org/wiki/Science_fiction