I think it depends on what you use notes for. Just a scratchpad of random, mostly ephemeral ideas or simple folders? Notes is probably good enough. Obsidian is

I think it depends on what you use notes for. Just a scratchpad of random, mostly ephemeral ideas or simple folders? Notes is probably good enough. Obsidian is designed for those people that want to minmax their note taking and find reasons to increase productivity by providing robust linking and search capabilities within any document. The photos in the OP are a good example of how many people use Obsidian. That said, I'm not an expert (never used it personally), but that's how I understand it.