Words and phrases come and go like names. Some are popular for a few years and then they seem “old.” Parlor is such a word. My grandmother used it, but now it is almost a non-word.
For those under 50 (60?) here are some definitions:
A room to receive and entertain visitors in the home. A sitting room. (sometimes synonymous with living room)
A room or building that serves as a place of business such as funeral parlor, beauty parlor, ice cream parlor or tattoo parlor. (What an odd mix)
A lounge in a hotel or club.