This has been an issue with me for thinking about Bellingham. Even when he was playing in a less advanced role at Dortmund his assist and playmaking numbers were decent, but not particularly ahead of the pack of his peers. He has demonstrated that he is capable of doing many different things at a very high level, but no player, except an alien, can possibly do all of those things to the highest level all at once. He is certainly giving it a go.
Not sure if this makes sense, but I have to check myself and ask whether I am basing his assessment on what is actually happening, or on the composite in my mind of what he he is capable of. A crude example would be thinking of a composite of 06/07 Ronaldo and 16/17 Ronaldo as the assessment of "Ronaldo the player", rather than the reality of distinct exceptional iterations of the player but with different points of emphasis of his playing style optimized at different times. With Ronaldo, it happened in distinct phases of his career whereas with Jude, it can seemingly happen from season to season. Theoretically, he could have a large drop off in goal scoring form and still be an exceptional player by focusing and expending energies on other facets of the game, even if people might not generally perceive him as the same caliber of player because goals trump everything.
He is still incredibly young and his style is still developing and may change yet again if Real Madrid brings in a proper striker for him to play off of. What's been interesting about him is the boundary pushing regarding the template for greatness. The most common template has simply been best-in-class exceptionalism in a few traits. Depending on how he develops, Jude can go: (a.) the common route with best-in-class in a few traits (Xavi, Haaland) (b.) the less common route with very good in many traits, but not best-in-class in any (Gerrard) or (c.) the freak/genius route with best-in-class in many, many traits, which I suppose many would call the DiStefano level. I'm sure you could push back on the taxonomy, but it's just something I've used to help try to process the player.