What's the appeal in using an STM32 clone? Are you building things in quantities where saving a few pennies is really worth the headache of all the subtle incompatibilities?
The appeal is that there is a lot of good example code showing how to use the communication peripherals, but the CPU core is RISC-V instead of ARM Cortex-M3.
Also they are rated for higher clock speeds and claim better power efficiency.
Also they are rated for higher clock speeds and claim better power efficiency.