The spot if it was antifreeze might leave a little residue. If it was condensation from an a/c running the condensation water would evaporate. Deb didn't mention power steering binding or if that reservoir was low. Deb's picture shows some dark edges and absorption into the floor.
To help understand the difference between potential radiator overflow, a/c condensation & an oil leak, or even power steering leak this video does a good job of showing an oil leak stain on concrete.
Deb doesn't read or respond to my posts so I'll repeat what I posted in #98 that post included a video of why an oil pan gaskets takes time to replace.
The quantity is minimal & using a cleaner every time the spot appears could get tiresome to do.
Some oil dry [looks like kitty litter] won't remove the stain but is easy to use & will eliminate the potential to slip & fall.
According to other Debs posts driving 50 miles a week shouldn't cause much oil loss thru the pan gasket. Checking & adding oil when needed will cost far less than the cost of a pan gasket replacement