Any kind of Oscar for acting to him as a person counts as YES, including male/female, lead/supporting.

Starring in a movie winning Best Picture, or some other award for the movie as a whole, does not count. Directing/writing/photography/soundtrack would not count.

2030/102nd Oscar Awards is likely to be the last one to be counted, unless something changes. As phrased in question, receiving the award before 31-12-2031 is what counts.