i think we should be wary of those claiming their project is 100% quantum resistant now.
if we were to research and compare the facts of the matter, by oct 2026 :
QRL uses hash-based signatures from 2018,
near and algorand also have optional pq signing ready to use.
having pq signatures is only 1/2 of the story however, the other part is how flexible that blockchain is when it comes to changing its cryptographic algo.
@starknet is a good example of that other aspect.
its starkproof technology utilizes hashes, not elliptic curves for proofs.
and since every starknet account is programmable there is room for implementing a different signing mechanism without any network upgrade.
and even with all of that, they are still not 100% done.
so when a project says it is already fully quantum safe, i get skeptical, cuz those are usually the ones with the least to show when you look into it.
and being honest, I would rather trust a project that says "we are working on it" than "we are already safe"