Does Lore Really Matter in FPS Games?

This game has cool characters with cool backstory & all, but does that really matter to you? Like if this game didn't have all the lore & backstory would it effect which legend you play or if you even play the game at all?

I remember seeing all the Overwatch animated shorts thinking oh that's cool. They should make a movie or series out of this. But I never once played the game. On the other end, I've played BF & COD without giving a second thought to any lore or the story in the campaign. I think I've only ever finished one solo game to one of those franchises as a matter of fact. But basically as soon as I was able to play the multiplayer I forgot about the solo mode in those games completely.

This game has a lot of story though especially since it's a part of Titanfall, which I still have to catch up on all that if I want to fully understand what's going on with some parts of the story. It's like when you pick up reading a comic & you've missed several issues. I also sometimes feel it's too fragmented with all the ways they provide lore that some people will never access, like the Twitter comics for example. Not everyone has or cares to have Twitter. Or Pathfinder's book. Not everyone is going to get that. But I do feel they should do more visual media like a show. I'd even watch a movie if they did one.

But back to the main point. How much does lore matter to you in games where you're just shooting people?