Yes: likes, comments, subscribes, and even liking existing comments on a video, as long as the visitor is logged into a Google account (these actions don’t work anonymously). For comments specifically, you build reusable comment lists in the app and assign one to your Comment task, or set it to pick randomly from a list, so every visitor doesn’t post the same line. Keeping a few varied lists per topic is the easiest way to avoid a spammy, repetitive pattern.
Full guide: Engagement: likes, comments & subscribes on docs.dalga.dev