Willow only implements one single error corrected logical Qubit, using over 100 physical qubits. So far the test they have done is only applicable to an extremely narrow problem domain, approaching the limit of how practically useless a problem domain can be. I may be exaggerating slightly.

As Google's own team report "Google will only consider itself to have created a “true” fault-tolerant qubit, once it can do fault-tolerant two-qubit gates with an error of ~10-6". That's two logical qubits.

The general consensus is that to have a practically useful quantum computer we'd need one with about a million physical Qubits. That's not just 1,000 of these 105 qubit chips because those wouldn't be entangled, but one chip with about a million entangled physical qubits and therefore 1,000 logical qubits.