If you're used to game reviews, then something to keep in mind is that movie reviewers (and most reviewers for that matter) use a full scoring scale, not the weird weighted bullshit where anything below a 6/10 is garbage that game major game reviewers use. That means that a 0 is a literal blank screen, a 10 is a masterpiece that should be mandatory viewing, and a 5 is not good or bad, just okay.

Additionally, reviewers tend to be harder on movies that break the mould, like what happened to Skinamarink. I haven't seen it yet (though it looks like something I'm into, just haven't had the time), however I've heard it was extremely polarizing. Some people loved it because they found it terrifying, some people hated it because it was too scary, and then a third group hated it because they found it incredibly boring. However, Skinamarink, from what I've heard (and the little bits I've seen), is basically Analog Horror^1 on the big screen, and was very well received by analog horror fans. Analog horror can be a very slow burn with little to no intentional jumpscares, which is why a lot of people struggled with it.

^1 analog horror is a genre of horror that involves replicating the feeling of late-night television during the analog era (typically public-access during the 1980s~2010ish) - where you were up at 3am and half-asleep and a surreal and bizzare commercial or psa aired and the morning after you can't figure out if what you saw was real - or the feeling of looking through old camcorder recordings only to find that one of them is from a place you've never been, or features a person you've never met. It's basically a subgenre of found-footage. Some good examples are Local 58 (which started it all), Gemini Home Entertainment, The Mandela Catalog, and the Monument Mythos (I disagree with the Monument Mythos being analog horror, it's more analog horror-adjacent, but most people consider it to be analog horror). Out of these I personally enjoy Gemini Home Entertainment and The Monument Mythos the most, and I even if you aren't into the other three, I'd recommend watching the Monument Mythos anyway. It's extremely well written, to the point where I sometimes can't help but wonder if "Alex Casanas" is a pseudonym for a popular author or filmmaker. Note: make sure you check for playlists on the channel, otherwise you may accidentally watch videos in the wrong order; particularly important with the Monument Mythos. Also make sure you have a notebook on hand for the Monument Mythos. You don't have to take notes, but it'll help you piece things together. Also check video descriptions.

Edit: damn, the footnote ended up being longer than the main comment.