A well designed trackpad will have virtually flawless palm rejection, which means it shouldn't matter. I'm not sure how that fares outside of Apple machines though.
I have a System76 (not a Lemur, but surely the touchpad software is the same) and I've never once had a problem with palm rejection. For that matter, I never had a problem with palm rejection on any of the Windows laptops I used to use. Are there any laptops that do have problems with palm rejection? AFAICT it seems like a solved problem (unlike, say "smart sleep", which is an unmitigated nightmare everywhere, including on Macs).