This report synthesises findings from 7 peer-reviewed papers addressing the following research question: How does Muppet pre-finetuning impact zero-shot cross-lingual accuracy on XGLUE benchmark tasks compared to standard fine-tuning for low-resource languages. 8 claims were extracted from source literature; 8 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 8.1/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: How does Muppet pre-finetuning impact zero-shot cross-lingual accuracy on XGLUE benchmark tasks compared to standard fine-tuning for low-resource languages?Autonomous literature synthesis. Automated review score: 8.1/10. Full text and citation available at Assignee Research.