Going from 32Gb to 64Gb RAM.. what to expect?

Sorry the page you shared is fr MSI, I have Strix Z490-E
Ive gotten away with having 4x8Gb.. have to admit, I risked having 4 sticks for the aesthetics

 

I still use 16GB of ram in my 3090 gaming machine, not encountered a single issue relating to ram use.
You should have stuck with 32GB.

Its better to look at your own experiences rather than rely on a salesmans pitch.
ie no issues, change nothing.

 

I shared what daisychain means and your strix is also daisychained.