I am vegan for the health benefits: avoiding colon cancer, avoiding type 2 diabetes, improved cholesterol , reducing visceral fat, avoiding overeating, longer healthier life, etc.
Not contributing to animal cruelty is a bonus but not my motivation so lab grown meat isn’t going to change the way I eat.
If it becomes efficient enough to reduce greenhouse emissions then that would be the only benefit I would get from it.
Both sides are same /s