Solid hardwood flooring is widely seen as the luxury flooring of choice (interestingly this was not always so, not so long ago carpet was the way to go) and you would have to say that bamboo is a closer cousin to solid wood than cork.
Any composite wood products contained in flooring products generally the underlying platform to which the laminate or wood veneer is affixed − are required to be certified as complying with California’s formaldehyde
Laminate vs. Vinyl Flooring: Pros, Cons & Differences ... consumers should always check with the manufacturer to see if the floor is compatible with the system. Laminate his floor, especially when floating, conducts radiant heating well. To be sure, check with the manufacturer. ... The Complete Guide to Laminate vs Engineered Wood Flooring ...
Solid Hardwood: You'll find a huge selection of solid hardwood to bring to life your personal style and décor, from traditional hardwood to on-trend colors to hand-scraped wood. The widest solid flooring available is 5", a moderate width that strikes a balance between the extra wide-plank trend and classic looks.