How many laptops with an adequate TB3/USB4.1 port don't already have something more powerful than a 4GB RTX3050 built-in?
I hope nobody buys this with the intent of playing games when so many newer games readily fill 8GB of VRAM.
Seems more like it's marketed toward owners of "thin & light" Ultrabooks which do not have a dGPU but may need the power of one at times for professional work, or to be paired with mini PC's like Intel's NUC line (the 4"x4" small ones; not the larger Extreme variants which can take desktop GPUs).
It doesn't seem to be intended for gaming, though it will still likely play some games at lower settings just fine.
Definitely a niche product, but a creative one nonetheless, as eGPU enclosures have generally not been small in the past. About the smallest you could get was to stuff a compact pro GPU into a Sonnet TB3 enclosure, and that's still significantly larger than this device. I could definitely find uses for this as I know some of my clients could as well.