Less stress? How do you measure this? Does it actually make a difference in performance?
I’ve tested recording 32 bit/float files versus 24 bit fixed @ 32 sample buffer setting and saw NO difference in performance. You are also writing more data to the hard drive using 32 bit files versus 24 bit fixed, which could be argued is stressing the system more.
In the vast majority of cases there is absolutely no benefit to recording 32 bit/float files in Cubase. Export audio mixdown to a 32 bit float file can be useful at times, but it is not something that is going “improve” your mixes and not really what the OP was talking about.