Help & FAQ/Import guides
An Obsidian vault is already a folder of Markdown files, which makes this the easiest migration of all: zip the vault, drop it in.
Your folder structure is rebuilt as real folders, not flattened into tags. A note in Work/Projects lands in a Work > Projects folder, nested up to six levels deep. Anything deeper attaches to the deepest folder and keeps the extra levels as tags, so no location is lost. Re-importing the same vault reuses the folders it already created instead of duplicating them.
On the free plan you can browse these folders straight away; creating, renaming, and moving folders is a Pro feature, so an Obsidian import is a good way to try it before you upgrade.
YAML frontmatter is understood: tags, aliases, and created dates are honored, and inline #tags in the body are merged into the tag field. You can also tick "Also tag notes by folder" during import to add each folder name as a tag too, handy if you also like filtering by tag.
Your [[...]] links keep working: PrivacyNotes renders them as note-links, so the connections between notes survive the move. The .obsidian config folder and .trash are skipped automatically.