It doesn't look like there is even a need for quantum proof algorithms. An Epyc CPU with 32 cores has 20 billion transistors. Even if we can build qubits as tiny as a transistor you won't be able to break RSA with ridiculous key lengths above 2000000 bits. In reality qubits will be bigger than transistors, not all quibits can be active at the same time and there won't be the same exponential growth in the number of qubits as we have seen in conventional computers.