As for migration, you might be able to create a degraded pool initially, copy over the data, and add the parity disk last.

I actually asked in the TrueNAS forum about this idea. According to some knowledgeable users this might work. For anyone interested, details here. The next major release (planned for end of October), should make this easier.

HDR? Ah, you mean when videos keep flickering on Wayland!

I will switch when I need a new GPU.

How was there never a legal battle between KDE and Mortal Kombat?

I try Wayland from time to time, but my 4k60Hz TV (HDMI) keeps having problems.

Under Wayland I only get 30Hz and sometimes it makes the system very laggy.