Most definitely not "just on the internet" (which is kind of a weird statement, the vast majority of Canadians use the internet). Just have a look at the current polling.
Anecdotally, here in NB (which is a conservative cesspool, to be fair) I've seen a few "Fuck Trudeau" stickers and flags, and have heard many go off on rants about why he's to blame for everything they dislike (typically stuff over which the prime minister has zero power).
It almost makes me feel bad for disliking Trudeau for being a massive neoliberal and lying about getting rid of first-past-the-post. I don't want to be associated with the "Fuck Trudeau" crowd.