Thanks for reading and commenting!
This is a good question about floor price. I don't see anything in their docs: https://help.liquidium.fi/en/collections/9175968-more stating where it gets Floor Price from. The LTV does update in the portfolio section of the platform.
I did my loan on Bitcoin Puppets and it's a pretty active ordinal collection. I follow the price closely on MagicEden so I saw the floors matched up on Liquidium and Magic Eden.
I buy and sell mostly on MagicEden. There are other platforms, but I find MagicEden to work pretty well.