The main reasons I’ve seen from vegans for not eating meat seem to be all about the morality of eating a sentient animal, the practices of the modern meat industry, and the environmental impact of it. And don’t have anything to do with the taste of meat.
Since lab-grown meat doesn’t cause animal suffering, and assuming mass production is environmentally friendly, would you consider going back to eating meat if it were the lab-grown kind?
Lab-grown meat might not have nerve-endings or nerve-endings that connect to nowhere. You will need a brain or spine for the nerves to connect back to for the nervous signals to get recognized and processed before the screaming and “conscious” state of the brain can potentially exist.
So in essense, the lab-grown meat will just be like tissue cultures kept artificially alive but not a living organism.