The "usual" approach is to use CA glue to "drop fill" the area. Once hardened, use a single-edge razor blade to scrape level, then sand with progressive grits of abrasive, followed, usually, by two or more abrasive rubbing compounds.
It's a relatively easy fix for a professional. Perhaps not for someone if one doesn't have prior experience.
I wouldn't use epoxy, regardless of what the original finish is.
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