1. If you work from home obviously you will have lack of (work) social connections, yes WFH ain't that much fun as office.
2. I don't really need to know coworkers, it's useless information unrelated to my work. I work with some people 6+ years and have absolutely zero clue about their background or anything, actually I am almost longest working person there, I see people in emails changing while I am staying there, I dunno what happens to those people who stop writing me emails, whether they had kid, died or left for other company.
3. I don't even know what is "fit into company", I deliver results, nobody cares about some unmeasurable "fit", must be an American thing.
4. I know for sure social connections and open space office in work decreased my productivity/performance and time spent working. I was among the chattiest people in work, so I would enjoy that, but certainly it would take toll on my results.
5. My kid was born 7 years ago, so I wouldn't have time for social interactions outside work anyway other than on playgrounds/trips.