This chapter's message is "Today I gone shopping. Oh, and here's a few shots of me trying on underwear"
Not that this manga had much to say before, but this is even less than that
TBH, it's a wholesome fanservice.
As a young adult, I approach the manga maturely. Not everything should be viewed in a sexual way.
I however interpret it as a "So this is a day in a life of a young wife w/o BIL, pretty normal for an ordinary young wife would typically do during day-off".
Yeah, kinda generic in every SOL mangas NGL, but it's a necessary thing to understand a character more for further enjoyment or for just plain context.