There's definitely not just one thing about any given street that makes it pleasant or unpleasant.

Street widths do not matter, for example, if the urban design makes it such that there's no need to cross the street. If the highway doesn't bisect a community in the first place and there's no compelling need to cross it, it affects nothing. Similarly, if there are pleasant and safe ped underpasses/road overpasses, the width still doesn't necessarily matter (but ped bridges are almost universally terrible because they have to be SUPER high to account for large vehicles, making them awful to use).

Similarly, even a 2-lane road can be incredibly hostile to pedestrians. In my small city, we have a few major 1-way roads theoretically designed to get cars rapidly in and out of downtown. To make the roads "work better" they have no on-street parking, are somewhat wide (for the city) laned, and have limited stops (the few stops they do have are signaled). They are way too fast, considering they are residential roads lined with fairly dense historic houses. The sidewalks are somewhat narrow and tree canopy is poor, meaning if you're on these sidewalks you're pretty sun-beaten. No one local walks these roads. They go over a block or two to get in a less oppressive route.

edit- and to be clear, going over a block to a more ped-friendly route isn't even necessarily a problem... if the route one or two blocks over was primarily for bikeped. Segregated modalities is a pretty good compromise for an old city like mine, with enough density to largely support it. But no, those routes are ALSO primarily for cars, they have just not been optimized quite as much.