I looked at the documentation, saw it looked like a lot of stuff to learn, and went back to my plain org-mode files. Not sure what it is I miss out on?
I've always had the same problem - could never figure out why I'd want backlinks and endless templates all that. Seems like a lot of complexity for little gain. I put similar items in the same directory/note and never have trouble finding anything. It's possible that I have so much stuff and so many things coming at me that a simpler system is needed to operate at that scale. I've still got an old Roam Research account from when they were free, watched videos, listened to podcasts, read blog posts, and could never find an advantage of going the complex route.
I think it just depends on how you're able to access and use your notes. For me, backlinks were a life-saver because it's important to model relationships between individual notes. It's really helpful for synthesizing knowledge and creating output, or just exploration to find related ideas, etc. Backlinks also help with breadcrumbs, so if my memory fails (frequently) or my search fails (more often than I'd like), I can usually find what I was looking for by navigating backlinks or using hierarchical breadcrumbs (all generated automatically with backlinks in a defined property). So I get a bunch of bottom-up organization for free with minimal effort, and for me it's pretty helpful. Plain textfiles I have trouble resurfacing knowledge very quickly, but YMMV, it's really personal.
The nice thing about obsidian is that you can start off really simple. It can be as minimal as linked markdowns documents if you like. Which is pretty much most of the core plugins disabled up to all the bells whistles.
I've never used org-mode so can't really comment on whether you'll actually be gaining anything
Oh, I use Obsidian too. It's org-roam and related software like Roam Research that inspired it that adds a bunch of complexity. My primary system is to dump similar items in notes in folders in Obsidian.