I made this weirdly shaped wall and wanted to create a doorway to the next room that wouldn't have a gap in between. I've tried a lot of things, but my lack of experience doesn't allow me to solve the problem. What would be the best solution? I'll include the blend file. Thank you in advance!
My vote? Rebuild the wavy wall: Start with a wall that already has the doorway cut out of it and re-do the deformations, maybe even just shrink-wrap the new wall against the existing wavy wall.