e4 recently was ‘proven’ a draw by Magnus Carlsen and Hikaru Nakamura. The main line 1. e4 e5 2. Ke2 Ke7 quickly leads to a draw by repetition of moves (https://www.chessgames.com/perl/chessgame?gid=2029671. Video of the game at https://youtube.com/watch?v=zVCst6vyV80)