Perhaps I wrote about it back then, in 2018 a tv-show came out, titled Origin. It's a sci-fi, set on a space ship which is heading towards some habitable planet to make a colony there. Just like Ark  >>/50009/
But unlike Ark, this is an enjoyable show. It was scrapped just after 1 season...
It has a plot, it has mystery, all right acting, and whatnot. Have to rewatch it.