Italian here. Don't get your hopes up, Italy is a very peculiar place, there are 11.5 million workers that are members of one of the tree major trade unions, not counting smaller ones, it's half of the total work force. Nothing moves in Italy without an agreement with trade unions when a company the size of Amazon starts hiring en masse. That's both good and bad, but generally more good than bad.
I'm generally pro-union and I see nothing wrong with this deal. Our particular implementation of unions though is dreadful and disgusting. Full of politicians or wannabe politicians, they'll gladly defend the indefensible to raise their membership numbers. They are for all practical purposes political parties, not unions, and they regularly come out with nonsensical takes about everything.
It's good most of the workforce is unionized, but I have nothing but contempt for how they're run.