During the final parts of Gears 5, you’re given a choice of who to save. You can choose to save either JD or Del. This Who Will You Save In Gears 5 Guide will tell you what happens when you choose to save JD and what happens when you choose to save Del.
There are major spoilers in the sections that follow. When you reach this point of the story you have a limited amount of time to look at the character you want to save, before throwing your knife to save them.
Besides the obvious huge difference in one particular aspect of the ending, the vast majority of it is identical. The dialogue, animations, surviving characters, events, it’s all the same – except for this one single choice.