I re-tested in Lubuntu 20.04.2 LTS and reproduced the
problem on the current LXQt desktop (pcmanfm-qt 0.14.1),
-w works when given an absolute path, while it has no
effect (but no error) if the path is relative. I have
not had the chance to re-test on the non-Qt LXDE desktop
(no longer supported by Lubuntu, but still in Ubuntu 18.04);
pcmanfm 1.3.1-1 does not talk to LXQt. As pcmanfm-qt still
has the bug, I wouldn't be surprised if pcmanfm does too,
but in absence of other tests, I wonder if this bug should
now be moved to the pcmanfm-qt package (at low priority).
I re-tested in Lubuntu 20.04.2 LTS and reproduced the
problem on the current LXQt desktop (pcmanfm-qt 0.14.1),
-w works when given an absolute path, while it has no
effect (but no error) if the path is relative. I have
not had the chance to re-test on the non-Qt LXDE desktop
(no longer supported by Lubuntu, but still in Ubuntu 18.04);
pcmanfm 1.3.1-1 does not talk to LXQt. As pcmanfm-qt still
has the bug, I wouldn't be surprised if pcmanfm does too,
but in absence of other tests, I wonder if this bug should
now be moved to the pcmanfm-qt package (at low priority).