TriliumNext is built around hierarchical notes, links, attributes, and local data. A replacement should be tried with a small connected notebook rather than isolated Markdown pages.
Export a subtree containing nested notes, an image, an attachment, internal links, and a protected note. Import it into the candidate and inspect the tree, link targets, search, tags, and history. Edit the same note on two devices while one is offline, then reconnect and inspect conflict behavior. Finally restore from a backup on a separate machine.
TriliumNext's Markdown export guide warns that protected notes can be exported unencrypted. Handle trial archives accordingly. A migration is successful only when both content and its relationships remain navigable.
Akousa