This から is "from (such-and-such a 話題)" or "after (such-and-such a 話題)". This 話題 is modified by everything from 女友達 to という. And ラインナップ refers to the apps of the writer's own smartphone (you can tell this because of the passive voice 言われ). 男子高校生すぎる is a loose way of saying "too much like a male high school student".
The apps in the smartphone of a female friend of mine are too "male-high-schooler-ish" (i.e., too much like those of a typical male high school student; perhaps she had a shonen-manga reader or a bishojo-game)
... from such a topic, (the conversation evolved to the following ...)
I was told (i.e., argued back) that "your line-up (of smartphone apps) is (like that of) a hobby-less empty female office worker",
...and it cracked me up.
You are confused about who said what. The author said to the 女友達, "Your apps are like those of a 男子高校生!". Then the author was argued back by the 女友達, "But yours are like those of an empty OL!". Which made the author laugh.