Verified answer
Does Latin American Spanish have full voice acting?
Quick answer
Steam lists Latin American Spanish interface and subtitles but does not mark that variant for full audio.
What this means
Spanish from Spain is a separate entry and does include full audio. The two variants must remain separate in language-support pages and purchase advice.
Official source
Steam — Spanish language matrix
Continue with the relevant guide
Open the related Control Resonant guide for the current topic summary, connected systems, and any later verified changes.
This answer is reviewed against pre-release official information. It states unknown boundaries explicitly and will be revised when Remedy or a first-party store publishes a newer fact.