Cascade
Cascade is a mainstream P&G brand with no plastic-free positioning; it's here for the ActionPacs, the dishwasher equivalent of the laundry pod. Cascade's own site confirms the pod uses a water-soluble film made with polyvinyl alcohol (PVA/PVOH) - a plastic - which it brands "PVA Smart Film." P&G argues it biodegrades (the disputed position); the material point is that the convenient pod is wrapped in dissolvable plastic.
How clear are their specs?
Discloses the PVA film on a dedicated page (and even names it), but frames it as "smart film" rather than plastic.
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.