The short answer: For LVP or hardwood, use a Swiffer or a microfiber mop, damp clean it, and dry it. Don't use a lot of water. And check the warranty for your particular flooring, because different manufacturers treat things differently.
How do I clean LVP and hardwood?
For LVP or hardwood, my recommendation is to use a Swiffer, or a microfiber mop that you can use a microfiber cloth with. Just damp mop it and spot clean as needed.
I definitely would not use a lot of water on LVP or hardwood. You just want to damp clean it and then dry it.
What should I clean LVP with? On LVP, I would only use water, or water with a little bit of white vinegar. (The vinegar tip is just for LVP, not hardwood.) You can buy a white vinegar cleaner at local hardware stores, and it'll tell you the mix rate, but it's very little white vinegar. Do not use other cleaners, because some cleaners will leave a residue on your floors. It will be sticky and hard to remove once you put it on the floor.
What can void my flooring warranty?
It almost depends on what kind of flooring it is. My understanding is that there are some vacuum cleaners that can void your carpet warranty, because they're so aggressive they can actually damage the carpet.
What I would do is look specifically at the warranty for your particular flooring, because different manufacturers treat things differently. I don't know that there's a catch-all for that.
For the warranties on our own LVP lines, see What to Look for in LVP.
Questions about caring for your floors? Give us a call or stop by our Provo or Lehi showroom.