Is the DLC needed to get to 100% completion?

I notice that the only cats and bonus items that I have trouble finding are the ones hidden at the very bottom of pictures that, even with the magnifying glass, feel almost impossible to even find. I am currently at one of the last scenes in the DLC and even though an area is highlighted, I cannot even find the tie. This has happened in a lot of scenes and it is a problem with the scenes not being able to scroll far enough down, zoom not catching it, and sometimes they are plain impossible to find even wit...

May I humbly suggest to the developers to increase the zoom for the comic strip sections. I am needing to use a magnifying glass to find some of the cats on my laptop. The zoom feature for the main picture is very good, but the comic strip section needs improving. Thank you devs from an older gamer! ...

do not unlock

The game has a Soundtrack tag. Can you remove that? It took me considerable effort to find/open the title and identify why it was excluded through my store preferences. I have the Soundtrack tag excluded to hide soundtracks from search results and listings. Not to hide any games. ("has-soundtrack" would be more appropriate; but that's almost every game anyway, no?)...