If a finished maple fretboard doesn't need oil, how do you clean

What can I use on a maple fretboard to clean it?

Does maple and rosewood fretboard have a noticeable sound difference? - Quora

Should you oil a maple fretboard? - Quora

Roasted maple necks. Finished vs unfinished

Fretboard Conditioning Oil — 13th Street Guitars

Do you prefer rosewood, maple or ebony fingerboards on your guitar? - Quora

If a finished maple fretboard doesn't need oil, how do you clean it? - Mastering Guitar - Quora

Help w tru oil fretboard : r/Luthier

Guitar Maintenance Tips: When to Oil Your Fretboard