I can’t think of a way to do this.
Have a quantity of Room Tone available.
Drag-select some damaged voice presentation. Press some button combination and the just the right amount of Room Tone is inserted instead of the damage. No show length change.
That’s what these plug-ins were made for: https://forum.audacityteam.org/t/punch-copy-paste/28906/1
Seems right. I need to read through that when daytime happens.