I have tried watching D&D streams in the past - while doing dishes or cooking or similar. Something I don't have to concentrate much on that plays in the background.
I found watching D&D a bit tiresome, unfortunately, and Critical Role was, surprisingly, even more of a drag than watching the various other groups on Youtube. Were expectations too high because of their popularity?
D&D is too close to my heart and I just prefer playing it, writing for it, reading it. Maybe I found the various groups’ glazing over or complete misconstruing of rules/ use of house rules irritating.
What I did find slightly more captivating was watching other game systems being played - Call of Cthulhu, Numenera, Shadowrun, or even Vampire(once, only once) . I haven't got time or inclination to learn other systems, so it's my only way to "see what's out there".
Watching them generally confirmed that I’ll just stick to D&D, thanks.