Naturally I'm watching debates about the canonicity claim break out in assorted places.
As far as I can find, the whole “it’s canon” claim comes from Webtoons in their press release, and no one from Paramount is being quoted making that claim. Unless there’s a separate Paramount press release I can’t find.
So this whole claim is just silly.
Just saw an interesting bit on his Bluesky, Mike McMahan's story in this issue is the idea he had for how a season 6 of Lower Decks would have kicked off.