Comment 3 for bug 1922342

Hi.

The software versions I have installed are:

cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

apt policy gnome-disk-utility
gnome-disk-utility:
  Instalado: 3.36.1-1ubuntu1
  Candidato: 3.36.1-1ubuntu1
  Táboa de versións:
 *** 3.36.1-1ubuntu1 500
        500 http://es.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

 apt policy usb-creator-gtk
usb-creator-gtk:
  Instalado: 0.3.7
  Candidato: 0.3.7
  Táboa de versións:
 *** 0.3.7 500
        500 http://es.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

Furthermore, it can be related to the tool I use for write the ISO to usb, or perhaps like you say, to a quirk on my hardware. But in many years I was using ubuntu and others linux distributions I never or exceptionally had this kind of issues.
The fact is that some changes was introduced in the way that ISO images are created because if I use an Ubuntu 20.04 ISO and write it to a usb drive it defaults to a mbr partition table and now it defaults (using the same tool and doing it in the same manner) to a gpt partition table and that causes the issue on my hardware.
I just want to let you know. It is on your decision if this is right for you and the distribution or not. You (the whole Ubuntu staff not only you personally) are the developer and know better than me if the pros of doing in that way worth it or not against the contras (It have issues on some hardware). I only put this information at your disposal.
I, at least, have a workaround and can make use of it.
Any other information that could be useful for debugging this issue, I send without any problem.