Even though bug 1705119 claims this is fixed, I see it once again in F31. The progress bar when downloading updates is just a few pixels wide. That means that it seems like no progress is happening, especially with large download sizes and slow Internet lines.

This is happening in a clean F31 VM install containing:
gnome-software-3.32.4-2.fc31.x86_64
gtk3-3.24.11-1.fc31.x86_64
PackageKit-1.1.12-11.fc31.x86_64

Created attachment 1613054 [details]
video bug demonstration

Bear in mind that this is a small download size over a fast line.

Created attachment 1613066 [details]
screenshot of "100% downloaded"

This is the "full" progress bar.

I propose this for consideration as F31 Final Blocker, due to these criteria:
"All applications that can be launched using the standard graphical mechanism of a release-blocking desktop after a default installation of that desktop must start successfully and withstand a basic functionality test. "
https://fedoraproject.org/wiki/Fedora_31_Final_Release_Criteria#Default_application_functionality

Showing the download progress (correctly) might be considered a basic function of a package manager. Gnome Software is a core Workstation application that should meet high standards.

(In reply to Kamil Páral from comment #1)
> Even though bug 1705119 claims this is fixed, I see it once again in F31.
> The progress bar when downloading updates is just a few pixels wide. That
> means that it seems like no progress is happening, especially with large
> download sizes and slow Internet lines.

1705119 fixed the distro upgrade progress bar (e.g. upgrading from F30 to F31). The progress bar for downloading updates is still somewhat broken indeed.

I am not sure, if I had seen this problem. For me, updates to a fresh installation of Fedora 31 gives:

1. I start the Software.
2. It finds updates and offers to download them.
3. I click on Download and it starts downloading the packages, I do not see any blue progress bar on the bottom of the button at all and after several seconds, the button changes into Restart & Install. 
4. I click on it and it restarts and installs updates without problems.

Maybe the internet connection is rather fast, so the progress bar does not really have time to show. Nothing is reported in the logs and the update finishes ok.

What I wanted to point to: In my case, there also might not be any status bar visible at all.

I'm able to reliably reproduce this by installing Fedora-Workstation-Live-x86_64-31-20190905.n.0.iso into a VM, then booting the system, creating the user, starting gnome-software and requesting to download all updates. Of course this needs to be done without having a 1Gb/s connection :)

Discussed during the 2019-09-09 blocker review meeting: [0]

The decision to classify this bug as a "RejectedBlocker" and an "AcceptedFreezeException" was made as there is not enough support to consider this a clear violation of the release criteria, but it's certainly a bad enough experience to want it fixed for first-time F31 updaters.

[0] https://meetbot.fedoraproject.org/fedora-blocker-review/2019-09-09/f31-blocker-review.2019-09-09-16.00.txt

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Still the same in F33.

The quick download without a progress bar can be due to the packages being already downloaded. This change [1] is surely related to it. As this is not Fedora specific, let's use an upstream bug [2] for it. Please see it for any further updates.

[1] https://gitlab.gnome.org/GNOME/gnome-software/-/issues/1177
[2] https://gitlab.gnome.org/GNOME/gnome-software/-/issues/13

Hey Milan, this is a completely different problem that the one you linked it to. See the attachment in comment 0 or comment 3. This is about a progress bar not using the full length of the Cancel button. I see it very frequently, it's not related to a very fast download speed or anything.

I can be wrong, though I think the underlying problem is the same.