Here's what needs fixing, prioritized by importance:
Immediate structural issues:
- Stagger all butt joints - lining up joints on the same stud creates a weak wall and will telegraph through finishes. Joints should be staggered at least 6" vertically between courses.
- Relieve the sheets from the slab - leave ½" minimum gap at concrete to prevent moisture wicking and allow for slab movement. Use a scribe or kick the sheets out.
Finish-related problems:
- Move the door corner joint - that butt joint at the door opening corner will be highly visible and prone to cracking. Relocate it at least 6" away from the corner.
- Check sheet alignment - ensure all sheets are properly fastened and not over-driven, which causes dimpling.
Code references:
- IRC R703.2 requires staggered joints
- IRC R703.1.1 requires ½" clearance from concrete
What to tell them: "Stagger all butt joints minimum 6" vertically, pull all sheets ½" off the slab, and relocate the door corner joint. These are structural and moisture issues that will cause cracking and failure."
The finisher will have a nightmare otherwise - cracking at the corner joint, visible telegraphing, and potential moisture issues. Don't let them start finishing until these are corrected.