I think I overlooked at it. In Ontap 9.7 Release Notes, it says...
Removal of LUN resizing to 10 times original size limitation and we can now go up to 16TB.
Ex: Say, original LUN size is 500GB and max resize allowed was only upto 10 times (that is 5TB). But, now we can go upto 16TB irrespective of original LUN size.
So, >16TB LUN is still not possible correct (unless we play with LUN Geometry)?