I doubt that. There are competing sync extensions in their extension store. If you do not want to use extensions, you can sync the vault folder with any syncing app for free.

The whole data structure is designed to make this easy.

I chose Syncthing for this purpose, and it is free and works flawlessly. You can even trivially disable their native sync, as it comes as an internal extension.

Mozilla could have avoided so much drama with Pocket, VPN, AI features, etc., if they just were as transparent and liberal with critical first-party services as Obsidian is.