For pop music, a large number of preset timbres and rhythms are an absolute advantage of electronic piano over piano and electric piano. Electric pianos can usually only express more lyrical songs in popular songs, but the styles that electric pianos can express are much richer! The synthesizer is better, the timbre is full and true, and there are many effect sounds. Most of the bands we see on TV are used.
As for other styles, not necessarily. Jazz bands use jazz pianos and classical bands use original grand pianos.