Yeah, for sure
There are innumerable horror stories from cottage vendors bumping up against the money and strict gatekeeping of the nationally established conglomerates. This was in the US, but I know Canada also has, new, laws on the books to specifically prevent plant based cheeses from referring to their product as "cheese," despite being the exact same process and a final product that you wouldn't know side by side to the dairy version.
I'm not a vegan, but this is the just same ole regulatory capture bullshit that we're seeing w ev cars, good imported rum, net neutrality and everything else
Use calibre book converter. You might need a plugin if it's a super specific drm that needs to be removed (like, say, a library book from the libby app), but calibre will let you pick any output you want and save it as a clean file.