Bishop
Nick Barmby
Of course he’s 20. Yet a better player than Zidane was at the same age, with comparable skills and impact at RM as the great man.
You're talking as if his pre Madrid stint doesn't count or something. Yes Zidane wasn't seen as teen prodigy but thats partly because he was a genuine playermaker (Bellingham is not) and famously such mavericks often take some time to find their game. Also you need to remember Zidane was in Italy at Juve the strongest league in the world at the time and arguably the best team in the world for some years with him at its core.