Where does gentle artifact cleanup fit in a stem mix?

Marvinjax

I help a community archive prepare old concert recordings for private sharing with former performers. One recording has a lovely room sound and an expressive singer, yet several quiet passages contain small digital chirps that pull attention away from the music. I want to improve listenability without polishing away the atmosphere that makes the recording meaningful. During my research I found a brief repair guide. It seems relevant, although I would rather hear from people who have restored imperfect live material. My question is how to set a sensible stopping point. The older ambience is worth keeping. A separate sample can guide the first decision. I can compare matching passages before processing the full file. The restoration should remain limited. Any change must respect space. I need simple settings for future copies. A focused listening pass may expose unwanted side effects. The audience reactions should stay intact. The singer's voice must remain open. Each adjustment should remain clear to document. I will compare it at moderate volume. I would rather preserve a little imperfection than make the result sterile. How do you decide when a restoration has become too obvious? I am grateful for thoughtful suggestions.