Got to go w/ Xenon’n ans.
Used to do a lot of work for antique shops
Refreshing a finish by “cleaning ” is the way to go unless the piece is in really bad shape.
If the finish is completely intact,pastewax thinned w/ a few drops of mineral spirits will surface clean & you can stop at any time.
Oils & soaps can get into any bare spots & make it more difficult to refinish if necessary.
In addition to the “home brew” described , Formby’s & Howard have kits that are easy to use & work very well esp on older.natural finishes.
Very gentle on the furniture since they do not remove all of the original finish
The cleaning process removes the surface build up of dirt , wax & oils which might be called “patina” .but can also be just…dirt.
Once cleaned, a coat of hard pastewax offers good protection.
Less is more
Best regards

2 parts linseed oil, 2 parts turps or white spirit 1 part vinegar, ipart meths ( alcohol) as used by V & A Museum in London.
Shake up in an old bottle and use liberally. not only cleans but preserves.

Murphys oil soap is excellent for cleaning wood. And old english is a great for protection. Hope this helps.

My ex used to build furniture & he always swore by using Lemon Oil to keep the wood in good condition. I’m not sure what brand(Pledge?) he used but it was in the grocery/department store. Use the Lemon Oil weekly & you will be pleased.

Try this

LEMON OIL- WEEKLY, THE A/C WILL DRY WOOD OUT AND THAT WILL PROTECT THAT FROM HAPPENING..