I like the flooring here in this picture but wonder what it is
Is it some paint / stain on top of concrete? Because I can see the crack.
Or is it some laminate plastic thing?
Looks like an epoxy floor coating. Quikrete, Drylock, and Rust-Oleum have products, probably many other specialist coating and concrete manufacturers do as well (I have a can of Quikrete's version kicking around somewhere that I got from a friend who overbought it, but I haven't gotten around to putting it down yet. Can't really help beyond identification).