Pronounced sue-doe, or sue-du, or sudd-o? Hmm? The important questions. Don't think I've ever engaged in spoken conversation about Linux in my life, or watched a video talking about it. Despite using it almost exclusively for years, and having dabbled with half a dozen different distros and machine types. Scratch that, once, over a decade ago, a brief convo in which the person told me it was pronounced Linn-ix, and not Line-ux. Pointless point being you can spend a lifetime using Linux but unless it's for work you might still sound like a clueless twat.