What do you mean by fake?

TFA says it's a 386 processor [1]. It's just not a model from the 80s/90s. I wouldn't call that fake.

[1]: https://www.cpushack.com/ULi.html

it appears to be a real 80386SX embedded in the SoC, which also bundles the bridges, so i would not expect the math coprocessor from the 486, nor the amount of cache (this is an SX after all).

see https://www.cpushack.com/ULi.html for more information on this (not new) SoC.

What do you mean, "fake"? They claim it's a 40 MHz Ali M6117, 386 SX compatible.