Reminder that the meat you buy at the grocery store is as also as human modified as it gets and NOTHING like the wild game that our ancestors ate or even the farm animals from 100 years ago. The animal itself is probably GMO, spends its entire life in a steel cage standing in its own shit and piss and is given specialized processed feed to optimize how much meat it produces (or just has a tube down its throat so we don't have to worry about it eating fast enough). Not to mention tons of antibiotics that are given to the animal just to ensure it survives the hell we put them through which definitely makes it into the meat and therefore into you as well. And they're slaughtered and butchered by underpaid overworked factory workers who have to balance fulfilling brutal quotas with carefully extracting the meat and not getting it contaminated with shit from the animal's guts or the myriad other disgusting things around the meat that you wouldn't want to eat (you can guess how well that usually goes).
Animal cells (without the animal itself and also no central nervous system to experience suffering) growing in a clean, well controlled lab in tanks of sterile cell media doesn't sound so bad in comparison.
Additional reminder that nearly all of the worst infectious diseases in history have been caused partially or completely by animal agriculture: the plague, spanish flu, smallpox, whooping cough, swine flu, bird flu, covid, etc. So if you're worried about the long term health implications of lab grown meat, you should be ten times more worried about long term the health implications of regular meat, to the point where you should be worried even if you don't eat meat.