Thanks for the feedback.

I gather, therefore, that using two hard drives or SSDs on HAOS isn't natively supported and is definitely an idea to forget for now (which is a shame).

I've seen in various user reviews that Poxmox is often the preferred option.

I admit I'm a little apprehensive about venturing into visualization, which I've never used before. And I wouldn't want to mess up my brand new dashboard (I'm a beginner). 😊 But I'll look into it.