A useful leader remains available without making availability feel like surveillance.

Presence can support or supervise, depending on what it asks for when it arrives. Someone dropping by to see whether people are working produces performance. Someone genuinely reachable produces questions. The difference is not how often you appear but whether your appearing adds something or takes something away.

Say clearly how to reach you and what for, then let people use it without commenting on how often they do. Ask what they need rather than what they have finished.