/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono-Oblique.ttf is in ttf-dejavu-extra 2.34-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/fonts/truetype/ttf-dejavu/../dejavu/DejaVuSansMono-Oblique.ttf