I use deb, snap and flatpak packages, that is why I have installed "Software" package to have them all on the same app.
1. Open Software and at the title bar click on Explore button.
2. Left of title bar click on search icon.
3. Type in: pinta
4. Pinta app is displayed. Click on Pinta to go into details (attachment 1_search_window.png).
5. PROBLEM 1: Now first problem appears. At the top-right there is displayed "Ubuntu". As I understand this info is pointing that Pinta program is in my case installed from Ubuntu/deb, which is wrong. Pinta at my case is installed as snap package (attachment 2_default_windows.png).
6. In top-right click on Source selection button.
7. Excellent all three packages types are displayed: flatpak, snap and Ubuntu/deb.
8. From Source selection select flatpak and flatpak package is displayed.
9. PROBLEM 2: Click on Source selection and there are now only two options displayed: flatpak and Ubuntu/deb (attachment 3_flatpack_selected.png).
10. From left-site of title bar click on back button. Pinta is listed. Click on Pinta.
11. Click on Source button from top-right, we now have three options to select. Select Ubuntu/deb and Ubunt/deb package is displayed, which is fine.
12. PROBLEM 3: Click on Source button again and only flatpak and Ubuntu/deb packages are listed.
13. From left-site of title bar click on back button. Pinta is listed. Click on Pinta.
14. Click on Source button from top-right, we now have three options to select. Select snap package.
15. Snap package is displayed. PROBLEM 4: Now magically Source button from top-right has completely disappeared (attachment 5_snap_selected.png)
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-software 3.36.1-0ubuntu0.20.04.0
ProcVersionSignature: Ubuntu 5.13.0-1028.35-oem 5.13.19
Uname: Linux 5.13.0-1028-oem x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 21 17:19:26 2022
InstallationDate: Installed on 2022-01-13 (8 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
InstalledPlugins:
gnome-software-plugin-flatpak 3.36.1-0ubuntu0.20.04.0
gnome-software-plugin-snap 3.36.1-0ubuntu0.20.04.0
SourcePackage: gnome-software
UpgradeStatus: No upgrade log present (probably fresh install)
