It has databases that allow you to create many different views of things, but actually using this capability is one of the most frustrating things ever. No keyboard shortcuts; actions that you'd typically do in Excel don't work here; every table is its own page, even when it doesn't need to be; and so on.
You can also create a plain old table within Notion, but all of the complaints above apply here. Why even have a table object when it's going to just be a gimped database?
It has static web page hosting built in, but so does Confluence and other wikis.
If you try to use Notion off-line, it randomly won't show you changes until you're back online.
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That said, paper is great for worm (write once, read many) type data but is inflexible and really difficult to search through later.
Journaling is a great example.
It is easy and tempting to start with a paper journal. Feels more personal and connected. However, when you want to know how you felt on this day five years ago, or you want to find a pattern to explain moods that don't make sense, you'll spend ages sifting through notebooks. That's assuming that you haven't lost them.
Apps work so much better here.
I started journaling in 2014 but started journaling _daily_ after discovering Daylio in 2021. I use Day One now.
I regret not having used an app for this everyday.
There are so many moments of my life that I lost or don't remember very well because I wanted to "handwrite my journals" despite, often, not having the time to do so. Journaling has helped me understand why I feel things and when and gave me a great first step towards fixing them.
I will say that trying to modify a table in Notion makes me want to throw my Mac into the ocean and go back to paper and briefcases.