Is GTA 5 stiII growing or is it dying?

I don't think its still growing, and it's likely that Online is dying. I've always felt Online is very boring solo, and can be fun for a while with friends, but after a completing all the heists multiple times and having all the high end vehicles it gets boring with friends too. Online is likely dying, but I know the single player mode still has a decent speedrunning player base.