Strawberries have thrips that hide under the seeds, cleaning may minimize but does not all of them. That's true for fresh, frozen, chocolate dipped, long stem, USA fancy, Driscoll, etc.
In frozen there are coming out with all different Hashgochas, distributors, etc. All the various names & hashgochas don't change the facts.
Strawberries- Fresh, dipped, frozen, dehydrated, etc in any form must be peeled or pureed prior to consuming them.