Quantum computing doesn't break encryption itself; it breaks the discrete log problem (DLP), which is admittedly often used to generate encryption keys. Beside

Quantum computing doesn't break encryption itself; it breaks the discrete log problem (DLP), which is admittedly often used to generate encryption keys. Besides, we seem to be decades away from building quantum computers that can run DLP breaking algorithm. Despite all the reported progress over the last decade, they have yet to factor any number beyond 21 with a general quantum number factoring algorithm like Shor's.