I've not had any trouble moving it - in fact the folder system works perfectly. I can even point MD editing software like Obsidian at the network share I use for Dokuwiki and edit directly. Dokuwiki is clever enough to show when a file has been edited outside of the system, too.

Look and feel: agree, the default does it no favours (and I wish they'd update their website too, the 1990's look really runs behind the capabilities of the system) - but I've installed bootstrap and then modified to make it cleaner, which was again very easy, just some CSS.