Last one I did tried that a bit. Was looking at patches and repairing. And just cut it as straight as I could. Then just replace with a rectangle of drywall. Less patching. Less work. And faster. Most importantly less dust everywhere.

Same here. Every time I have taken tile down I just assume I am replacing the drywall.

It’s way easier to take the whole piece and replace it and I hate drywall. Luckily, the mud job doesn’t need to be great. Just passable. Assuming you’re going to tile above the joint. It’s so much quicker than trying to carefully remove tile.

It's fairly straightforward with gyprock/sheetrock whatever the brand -it's all gypsum board anyway.

You can just cut a straight line with a sharp X-acto knife, remove the damaged part, smooth edges and fit in the new piece and the refinish the wall. No need to tear the whole wall down for a new sheet.