Why isn't the new LEGO CV joint available on Bricklink or Brickowl? In the new 4x4 X-treme Off-Roader set 42099 there are 2 new, sturdier CV joint pieces that I would like to have. If I search for 42099 on Bricklink I don't see a list of pieces included in the set. I usually use a website called "Brickowl" (https://www.brickowl.com/) and there is a button that reads "inventory" so I can see all the pieces that come with the set. There doesn't seem to be such a button on Bricklink and on Brickowl I can't see the piece at all. Any info on why the CV is not there or how to access the inventory on Bricklink would be very much appreciated.
The sellers on bricklink/brickowl doesn't have ways to get elements before they become generally available.

As 42099 is brand new, pieces that are (currently) unique to that set probably hasn't made it to those sites yet. Have some patience, they will likely be there shortly.

Those sites rely on users submitting inventories so until somebody submits one, there won't be one (bricklink actually shows: "Inventory Pending Approval", so it probably won't be long).