Crucial does not tell, so I advise to keep away from their RAM modules. I can recommend Kingston as RAM brand, they clearly declare what a customer gets (at least in their detailed PDF spec sheets). E.g. their Kingston Fury Impact 16GB RAM modules are 2Rx8. This is the link to the 32GB kit (2 x 16GB):
Kingston FURY Impact (2 x 16GB, DDR4-3200, SO-DIMM 260 pin)PDF from Kingston (where they mention 2Rx8).
I advise to repace original RAM (if possible) and buy a kit of 2.
By the way G.Skill also does not inform potential buyers what they get, so I personally went with Kingston, you know what you get with them.