That chip has over 10x less RAM and only 60k flash. It has only one core and that core is clocked at half the speeds compared to both the RP2040 cores.
And it cost six bucks from US distributors. I can buy a single RP2040 chip from Digikey for 70 cents. Even if you add another dollar for flash memory, you are still far better off.
And it cost six bucks from US distributors. I can buy a single RP2040 chip from Digikey for 70 cents. Even if you add another dollar for flash memory, you are still far better off.