LINKTOFILTEREDVIEW() expressions do not work with card views.
If you’re still having trouble with Onboarding, uninstall AppSheet from the devices completely and reinstall. Otherwise, Morgan is aware of the LINKTOFILTEREDVIEW bug with Cards (new bug with new Cards).
Thanks @Bahbus for your reply.
Also, Onboarding is not working in editor mode so maybe something went wrong. No idea.
Mine worked in the editor after I cleared my browsers cache.