Currently kiofuse mounts its stuff under /run/user/$(id -u)/kio-fuse-XXXXXX where the X are a placeholder for a random identifier. Please remove the random identifier so the directory is called just kio-fuse (like gio). This would help with non-KDE tools and scripts.
See https://bugs.kde.org/show_bug.cgi?id=432856 and the discussion on https://invent.kde.org/system/kio-fuse/-/issues/18 *** This bug has been marked as a duplicate of bug 432856 ***