excited to be here, surrounded by people who care about books. request: a book that feels like being suspended in a dream. not excessively flowery prose. the mundanity of being alive. a story about the person sitting next to you on the bus.

Michel Butor's "Changing Track". Quite literally set on an overnight train from Paris to Rome with a soporific narrator observing his fellow travelers while he reminisces and dreams about his family and affair partner.
It's kinda an overkill suggestion but Infinite Jest (and most of DFW's fiction) is largely about the minute details of average daily life--both how tedious the current moment can be but also how sublime.
miss macintosh my darling has gotta be it
A Man Asleep by Georges Perec fits the bill perfectly
Seconding Kitchen, and what you're describing is a Japanese specialty. I'm thinking South of the Border West of the Sun and Strange Weather in Tokyo as well.
Place of Shells by Mai Ishizawa is not without its flaws, but might scratch a bit of that itch. Also, Kitchen by Banana Yoshimoto.
To The Lighthouse - Virginia Woolf