22.04 Startup Disk Creator missing

Startup Disk Creator does exist on Ubuntu 22.04.

see https://launchpad.net/ubuntu/+source/usb-creator/0.3.13

What output do you receive when you execute
/usr/bin/usb-creator-gtk
or
/usr/bin/usb-creator-kde
in a terminal window?

/usr/bin/usb-creator-gtk
bash: /usr/bin/usb-creator-gtk: No such file or directory

/usr/bin/usb-creator-kde
bash: /usr/bin/usb-creator-kde: No such file or directory

What output do you get when you execute the commands

uname -a
lsb_release -crid
sudo apt install usb-creator-gtk
/usr/bin/usb-creator-gtk

Thanks. It worked. :)

Well I guess not.
Could not write the disk image (/home/ptosis/Downloads/jammy-desktop-amd64.iso) to the device (/dev/sdb)

Could not write the disk image (/home/ptosis/Downloads/jammy-desktop-amd64.iso) to the device (/dev/sdb)

 so I'm downloading another iso from
 https://ubuntu.com/download/desktop/thank-you?version=20.04.4&architecture=amd64

Sunday 03.27.2022

Startup disk creator was missing
installed
 tried oon Lexar USB and it FAILED
 Could not write the disk image (/home/ptosis/Downloads/jammy-desktop-amd64.iso) to the device (/dev/sdb)

 so I'm downloading another iso from
 https://ubuntu.com/download/desktop/thank-you?version=20.04.4&architecture=amd64

 ubuntu-20.04.4-desktop-amd64.iso
 6:33PM
 Installation Failed
 Could not write the disk image (/home/ptosis/Downloads/ubuntu-20.04.4-desktop-amd64.iso to the device (/dev/sdb)

  Installation Failed

 Installation Failed
 Could not write the disk image (/home/ptosis/Downloads/jammu-desktop-amd64.iso to the device (/dev/sdb)

 Gave up on USB , Try with a 4.7Gb DVD

 Make Startup Disk doesn't even see th DVD at all Gave up on Make startup disk FUBAR

 try K3b instead
 (sigh)
 jammu-desktop-amd64.iso

 Write Error

Is every iso bad? Every USB bad? And DVD's also?

You might try using dd to burn the iso to the USB. That should work if the ISO checksum was OK and no USB write errors.

The current live image is for testing Ubuntu only to see which bugs are present in the development stage.
Yes it is... Ubuntu release is no until next month which it may be included in the final release April 2022.
 Ubuntu ubuntu-22.04 2022-04-21 Final release of Ubuntu 22.04
That you may re-download the final version and re-install the new stable version of Ubuntu 22.04 LTS
after the final release date, then it will have the proper keys and release file for updates.
If you are making an .iso to use for installing on a USB. Always use Etcher..
Etcher checks the checksum for you... https://www.balena.io/etcher/
Ubuntu 20.04 LTS is still under development.. May still have bugs..
Other mean while you may submit a bug report: https://wiki.ubuntu.com/Apport

Maybe the problem is that it is a Dell 5755.
Does anybody have a suggestion for a laptop that works with Ubuntu 22.04?

"Does anybody have a suggestion for a laptop that works with Ubuntu 22.04?"
I guess you are misinterpreting what you see.

Almost all laptop/desktop/tower/... computers are able to run all Ubuntu releases. I severely doubt that a Dell 5755 would be incapable of running Ubuntu 22.04.
The problem must be something else.

Where exactly do you get the problem? During copying the iso file to the USB stick, or when trying to install using the stick?

 I suggest to go step by step.

1. Decide, which Ubuntu release you want to install, currently reasonable choices are 20.04 LTS, 21.10 and 22.04 (currently in pre-release status, final publication on April 21st, 2022)

2. Download the iso file for the version that you want to a directory on your hard disk

3. Execute a checksum test to verify whether the download is correct.

4. "Burn" the iso file to the USB stick.

How far did you get with that?
Where do you get error messages?

Remarks:
"Could not write the disk image (/home/ptosis/Downloads/ubuntu-20.04.4-desktop-amd64.iso to the device (/dev/sdb)"
This may indicate that the USB stick is defective. Have you tried other operations with that USB stick, e.g. writing files to it?

"Make Startup Disk doesn't even see the DVD at all"
For writing a DVD you need a different program, e.g. brasero
see https://ubuntu.com/tutorials/burn-a-dvd-on-ubuntu#1-getting-started

Thanks Bernard Stafford, that solved my question.

Thank you Bernard Stafford,
https://www.balena.io/etcher/
worked perfectly.