Script Compatibility Check?

local passId = 157223223

function isAuthenticated(player)
return game:GetService("GamePassService"):PlayerHasPass(player, passId)
end

game.Players.PlayerAdded:connect(function(plr)
if isAuthenticated(plr) then
Guy.leaderstats.RW.Value = 10
else
Guy.leaderstats.RW.Value = 0
end
end
end
end)

would this be Compatible with a Player Picker Script? I heard that it wouldn't be Compatible :/

What's Guy?