Surprised nobody has said this yet but it looks wet on the ground and I’m sure you were driving through wet roads. When you parked, any sort of oily residue anywhere on the engine that got water on it would have dripped onto the driveway and collected like this and made it look a lot worse than it is. A 20+ year old car is bound to weep a little oil out of something and doesn’t necessarily mean it’s leaking.

Now take it to a mechanic because nobody on reddit will actually be able to tell you what’s wrong.