I’ve been using the native Apple notes for years now. At first it was convenience, but at some point I thought about it and decided there was no reason to switch. It has shockingly reliable sync (for Apple), and the right number of formatting options for me. I wish it could syntax-highlight code blocks, but that’s not a universal use case.

Export is fine if you’re only moving a single note—it just strips formatting and shares it as plain text. Similarly, I don’t know if there’s a bulk import option. If you have a text file, you might need to copy-paste it into notes.