My take on Gravenberch.
I have read many comments by LFC supporter being unpleased about him because he is not a proper '6' and a good replacement for Fabinho.
I get it, people assume Klopp will play a similar system than he had in previous year and that they need a direct Fabinho replacement. I think the opposite and Klopp IMO is looking for a more offensive oriented team with more movement and interchangeable positions from midfield hence why he tried Gakpo at midfield. I do not think he is looking at defensive specialist other than for killing game late on (which endo will come in play). There are no Rodri player available in the market or close to that level so Klopp will have to take on some chances on raw abilities instead of the end product. As for Gravenberch, he is incredibly talented but very raw and Klopp must believe he can help him reach another level. Let's look at Gravenberch key qualities, size (obviously), great dribbling, great passing range and ability to create chances, good shot, good crosser, average header (still raw though and IMO better than Thuram who is of similar size/profile). What he needs to work on, his heading, his tackling and his ability to stay more composed on the ball.
At LFC I expect him to play the 6 but in a different way, they will ask him to try opening the play with his dribbling and ability to move the ball effectively to the forward. His passing range is also very good and he can distribute longballs to Salah, Nunez or Diaz. He has a long career ahead of him and Klopp and staff I think are very confident they can help him reach his game to another level.
Finally, if LFC signed him last summer people would drool about his potential coming out of Ajax as the top graduate of their academy and with plenty of experience at a young age. Don't let this bad season at Bayern define him, he is still very talented and in all honesty 30M is not that much in the current market.