On which competition was this fifa fantasy sports platform last used...was that the Nations Cup or something..just trying to look at the archives for some inspiration and see who are the danger men or women of fantasy sports (international games)

Team Messi will be baptized for sure and right now his not having it easy in America
The last one we all played was EURO fantasy on the UEFA Gaming app- I was just going through the CWC fantasy rules and I found them to be similar to that of last UERO fantasy.
What I like most is the static player's value; it stays the same through out the tournament - no drop, no rise, no panic transfer.
This is not FPL or even UCL, it is short tournament and that is much less time for strategies, planning and stuff like that to work.
This is much more about just picking players you like and hoping for the best. I would say luck will have much bigger impact here than in FPL. There is no time and games for luck to even out and return to the mean.