1) Protein helps to augment hypertrophy
2) High loads are not required for hypertrophy, or for a large part strength gains (especially if one 'practices' lifting heavy loads) pubmed.ncbi.nlm.nih.gov/28834797 - @BradSchoenfeld
3) The acute rise in systemic 'anabolic' hormones plays little, if any, role
Stay safe: wash your hands, socially distance, and best wishes to you and your loved ones!