Neither the GUI nor the command line will let me do this upgrade. From the command line I try
$ sudo do-release-upgrade
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.
Prior to this, I have done sudo apt update
and installed available updates. How can I find out what the system doesn't like?
There is also weird behavior from the GUI-based upgrader. I launch Software Updater and get this:

If I then click "Upgrade ..." the Software Updater window goes away and nothing visible happens.
Alternatively, another method for getting this done?
Updated with requested output:
$ sudo apt update
[sudo] password for scohen:
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Ign:2 http://dl.google.com/linux/chrome-remote-desktop/deb stable InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Get:4 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease [108 kB]
Hit:6 https://ppa.launchpadcontent.net/atareao/atareao/ubuntu jammy InRelease
Hit:7 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:8 http://dl.google.com/linux/chrome-remote-desktop/deb stable Release
Hit:10 https://ppa.launchpadcontent.net/bitseater/ppa/ubuntu jammy InRelease
Hit:11 https://ppa.launchpadcontent.net/mutlaqja/ppa/ubuntu jammy InRelease
Fetched 218 kB in 2s (93.9 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
3 packages can be upgraded. Run 'apt list --upgradable' to see them.
$ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
fuseiso gconf-service gconf-service-backend gconf2 gconf2-common libgconf-2-4
Use 'sudo apt autoremove' to remove them.
The following packages have been kept back:
gnome-remote-desktop libgphoto2-6 libgphoto2-port12
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
$ do-release-upgrade
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.
Update #2. Saw this in the above output and tried it. It made no difference.
$ sudo apt autoremove
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages will be REMOVED:
fuseiso gconf-service gconf-service-backend gconf2 gconf2-common libgconf-2-4
0 upgraded, 0 newly installed, 6 to remove and 3 not upgraded.
After this operation, 8,779 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 411977 files and directories currently installed.)
Removing fuseiso (20070708-3.2build1) ...
Removing gconf2 (3.2.6-7ubuntu2) ...
Removing gconf-service-backend (3.2.6-7ubuntu2) ...
Removing gconf-service (3.2.6-7ubuntu2) ...
Removing libgconf-2-4:amd64 (3.2.6-7ubuntu2) ...
Removing gconf2-common (3.2.6-7ubuntu2) ...
Processing triggers for man-db (2.10.2-1) ...
Processing triggers for sgml-base (1.30) ...
Processing triggers for libc-bin (2.35-0ubuntu3.1) ...
$ sudo do-release-upgrade
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.