What kind of wood might this be?

I bought a home about two years ago. This flooring is on the main floor and looks to be a DIY job. It’s worn down in some areas from dogs, gauged in others from who knows what, uneven gaps between the floor and walls, is starting to squeak/bounce in some spots and feels uneven/buckling in others.

The wood feels very light, dry, and splintery underneath but is finished on top with a faux distressed type look.

Is this trash and would look much better with hardwood and a professional installation? Or is it fine and I should replace the worn out areas and work to fix the squeaks/buckling/wall gaps?