I dunno. I love Obsidian, but it has a huge learning curve and is not currently the type of tool that I see companies adopting when they need to have their employees adopt it’s use. Obsidian is way too overwhelming for the average user, whereas Notion is far more user-friendly and intuitive for people who just need to interact with the system to do their job.
Edit: Not to mention that (last I checked) Obsidian lacks a lot of granularity when it comes to permissions for editing pages. It would be very easy for a beginner user to disrupt the markdown files or the organizational system. Even doing things like applying labels or tags in the YAML is less intuitive and requires a lot of consistency guidelines for users to make it worthwhile. Notion facilitates this kind of thing a lot better.
By default Obsidian is a markdown editor with the ability to link to other notes with a pretty graph of your note links. What is overwhelming about that?
Obsidian can be extremely simple at it's core, but to structure everything and make it easy to use by an organization will likely require a whole lot of additional infrastructure and adherence to strict guidelines for organization. Notion seems far more intuitive in this way. Notion is also a bit limited when it comes to customization, but that limitation seems like more of an asset in this case because it produces consistency of style and usage patterns across the platform.
Also, I don't find the Obsidian graph to be practical for organizing or locating files. It's impressive to look at, but not that practical in my experience.
Edit: Not to mention that (last I checked) Obsidian lacks a lot of granularity when it comes to permissions for editing pages. It would be very easy for a beginner user to disrupt the markdown files or the organizational system. Even doing things like applying labels or tags in the YAML is less intuitive and requires a lot of consistency guidelines for users to make it worthwhile. Notion facilitates this kind of thing a lot better.