Published in Level 1 - Volume 2 2021: We All Wear Masks and authored by Tim McCracken.
From the introduction:
You're at a coffee shop, tucked down a cozy side street, away from the neon glamour of the city. In your mind, you're a regular person with a family, friends, hopes, dreams, and a day job. You are incapable of realizing the truth: you're a cheaply made, malfunctioning robot in a world-gone-haywire whose creators disappeared long ago.