Should be on par, Linux versions in general are far better than windows by at least 10%, not sure if would be much between Linux distros.
Unraid's strength for Chia farming is that it is already setup to manage the apps, the drives, and the tiered storage solution.
If I happen to win a bingo coin (XCH), I'll probably build a dedicated farming rig with parts I have already.
User scripts plugin (GUI for cron essentially) and at minimum this code running on a schedule is all you need to get going
#!/bin/bash
dirNew=$(date +"%H%M%m-%d%y")
docker exec chia venv/bin/chia plots create -b 3840 -r 4 -n 1 -t /plotting/$dirNew -d /plots
note "-it" has been removed (we don't want interactive mode), otherwise its the same as the normal docker command