Is there a script to say delete a face in a mesh but have it not make an empty hole ?
No, that would create a N-Gon.
Select the face, then press alt-m and merge at center, cursor, or collapse.
Best of Luck!
That makes lots of tris
If a quad has a quad extrude and later yuo want it gone as example, Or edges,…
Meh ngons debate 101 never mind