According to Christian, he recognized the original backrooms photo as an old office job, he told me the company name and that lead me to this image, its an office in Montana :
Abandoned Office | Escape The Backrooms Wiki | Fandom
Reception and Backroom Area – Zongkers Custom Woods, inc
Backroom - Ged Carroll
Retail Details - Okay retailers, please weigh in. Do you have a dedicated office? A back room office combo? Other? Please comment. I'm taking a poll! | Facebook
Pictures Of The Backrooms Background Images, HD Pictures and Wallpaper For Free Download | Pngtree
KREA - an empty abandoned office building with fluorescent lighting, paper cluttered across the floor, endless rooms, liminal space, uneasy, flickering lights, scp, the backroom
You find yourself in the backroom, an endless office hall of liminal space, with no windows and no doors. Yellow carpet and yellow walls and... - AI Generated Artwork - NightCafe Creator
The office (The Stanley parable) level of backroom by Bopblip on DeviantArt