My dad worked for years in appliance repair and I went with him in the summers when I was a teen as a helper. Usually washing machines don’t “flood” the floor unless a hose comes lose (either a drain hose or a fresh water hose). That could have happened if the washer was badly unbalanced (caused by being overloaded) leading to violent shaking and the unbalance detector wasn’t working. Until you find out why the washer flooded the floor don’t run it again. A burst or disconnected hose won’t care in the future if the washer is overloaded or not. My wife used to use a laundromat to do her clothes and got into the bad habit of over-filling the machine. I do the laundry now. If it’s not a coin operated machine there is zero reason to overload the machine - It doesn’t do as good a job on the clothes, saves no money, and leads to premature wear out which costs you money. And for heavens sake, listen when the washer is going! If you hear any thumping go immediately to the washer and rebalance the load (take out the wet clothes and redistribute the load in the machine). By the way, home owners (your landlord’s) or renters insurance (your insurance) may cover the water damage. But a claim for water damage will likely eventually lead to higher rates so don’t expect your landlord to be very happy about that.

You did not mention that. You should be worried about your memory if you can't remember whether you included a detail in a two-sentence story.