I can’t easily figure out what proportion of other trips happen by bike/walking, what proportion of students walk/bike to school, etc., but I would be surprised if they match cities like NYC or Boston or most parts of Europe.
I don’t know what your neighborhood is like in person: how well trafficked is that underpass by pedestrians and cyclists in practice? Having some freeway underpasses near low-traffic streets be “pedestrian and bike friendly” doesn’t really help anyone if nobody walks or bikes anyway because there is nothing nearby to walk to because nearby places are extremely spread out and largely designed with the expectation that people will visit them by car, e.g surrounded by giant parking lots, with inconvenient road plans, etc.
The Southern CA town I grew up was similar low-density suburban with freeways passing through, and there were various ostensibly pedestrian-friendly freeway crossings here and there, but in practice few people ever walked anywhere except in the small downtown area or maybe exercising their dogs or going to one or another park (a decent number of kids <16 rode bikes around though). One of the nicest low-density suburban places I know of, but life for kids without cars was necessarily highly structured and relatively isolating.
You picked a spot right near the downtown between a low-density residential neighborhood and a commercial area, but looking at a satellite view and map search most of the residential areas in the city and surrounds seem to be relatively far from shops, restaurants, grocery stores, schools, ..., (at least compared to denser cities) so in practice many trips probably require a car. I’ve never been there so I can’t tell you what it’s like in practice.
But anyway, with that said, as low-density suburban development goes, Grand Rapids looks pretty nice, just judging from satellite view. Not my personal cup of tea, but definitely better than lots of places in the US.