64 BIT or 32 BIT Processing Precision

I have CUBASE AI and when I first started it up, the Processing Precision was set at 32 bit.

Is this the right setting if I am using VST, VST2 or VST3 plugins?
or should I set CUBASE to 64 bit?
I am using windows 10.

Many thanks for any info on this subject.

I will go with 32 bit, as that seems to be default.