A few days ago I installed Lubuntu 22.04, afterwards upgraded to Lubuntu Kinetic.
uname -a
Linux MYCOMPUTER 5.15.0-46-generic #49-Ubuntu SMP Thu Aug 4 18:03:25 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
lxqt-core won’t upgrade
sudo apt update
Hit:1 http://archive.ubuntu.com/ubuntu kinetic InRelease
Hit:2 http://archive.ubuntu.com/ubuntu kinetic-updates InRelease
Hit:3 http://archive.ubuntu.com/ubuntu kinetic-security InRelease
Hit:4 http://archive.ubuntu.com/ubuntu kinetic-backports InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
me@MYCOMPUTER:~$ apt list --upgradable
Listing... Done
lxqt-core/kinetic,kinetic 30ubuntu2 all [upgradable from: 30ubuntu1]
N: There is 1 additional version. Please use the '-a' switch to see it
me@MYCOMPUTER:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
lxqt-core
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.