No, there's a lot of stuff where formal proofs don't make sense or are highly prohibitive.

The flagship case is AI itself, where we rely on benchmarks, not proofs (how could one prove "is good at seducing people").

Something that could have qualified as a "CS discovery" would have been, for example, a SAT or SMT solver that dwarfs in performance any existing one.

Something that could have qualified as a "physics discovery" would have been a new particle. Anyway, something that would come out of experimental data.