Hi all, this (old) wiki claims that Sidock is 10 to 20% faster on Windows than on Linux.
https://dc.planet3dnow.de/wiki/index.php/SiDock@home
It's way down and says: "Windows vs. Linux: Windows ist 10-20% schneller"
Admittedly the last update of the wiki is long ago (1 May 2021) and it's the only site I see this claim on. But I would like to see other people's experiences before I make the switch.

Best
'äxl'