I haven't played it, nor do I have an axe to grind, but surely the character of these charts is you see four or five big, constant names which tend to be the big, constant engagement titles like Fortnite, FIFA, Destiny, Minecraft, GTA etc, and then a much higher churn in other titles as they peak and drop off as people disengage once they've had their fill and the initial hype is over?
That basically makes it a "Gears 5 multiplayer isn't good enough to keep it alongside or above Fortnite, FIFA, Destiny, Minecraft" etc. Which is a bit of a no shit statement. From what I've read the campaign is good, it has good reviews, but clearly the multiplayer isn't a world beater.
It's a shame the charts are the way they are really, it almost needs a game mode version - campaign charts, multiplayer charts.