Olympus Mirrorless Lenses

Hi. I'm looking at buying a Olympus OM-D E-M10 II for my partner. I've only ever shot Canon and Nikon so am very unfamiliar with the brand.

Just curious what mount lenses this camera takes and what I need to search to find lenses for it?

Also curious if there is a food adapter for it to be able to take either FD, EF or F type lenses.

Thanks!