I was picturing more like a sledgehammer size hole.

I suppose I don't know what kind of antics you get up to where that's an accident, but in any case you could maybe use those patch things, or you can probably buy a bit of new drywall, cut an even shape around the hole and use that as a template to cut your new drywall, insert it, and use putty to clean up the edges. Still only like $20-30 total.

Respectfully, have you ever actually repaired a hole bigger than a couple of cm, then sanded it and painted it to match the rest of the wall? Yes,the materials and tools cost less than a TV. What cost more than the TV are the materials, tools, and time needed to master the proper skills if you don’t already have them.

The hardest part _by far_ is texturing. I found matching the texture of the surrounding area near impossible during my DIY

Fixing the hole is easy. Few more steps than you described, but still easy. Texturing less so.

That only works for really small holes.