A note on frame 1 854, not “around the one-oh-four mark”.
Pause and type, or draw straight on the picture in cyan: an arrow at the boom, a circle round the thing nobody else can see. Every note carries its timecode, so answering it is one tap and you are both looking at the same frame. Exactly that frame, not the nearest one a streaming player can reach.
The client opens a link with no account and no password and sees one cut and the notes you marked for them. Not the budget, not the rest of the slate, and that limit is enforced on the server rather than just hidden on screen. Playback is signed, so the cut is never a public file anyone can stumble on.