applications that uses qt5-gtk2-platformtheme starts slowly

[lars]

I just installed clean Ubuntu Budgie 19.10 and I noticed some applications like VLC, Virtuabox... start really slow.
When you click on the application icon, it starts and appear on the plank dock, then it stays there a few seconds and then disappear again, after passing a few second then the application open.
Usually it takes between 10-30 seconds.
After reporting to Ubuntu Bugie forum, one of the team member "fossfreedom" recommended that we could remove the qt5-gtk2-platformtheme, then the issue will be solved. I followed his recommendation and it solved the issue.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: qt5-gtk2-platformtheme (not installed)
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.1
Architecture: amd64
CurrentDesktop: Budgie:GNOME
Date: Sun Nov 3 20:48:04 2019
InstallationDate: Installed on 2019-11-03 (0 days ago)
InstallationMedia: Ubuntu-Budgie 19.10 "Eoan Ermine" - Release amd64 (20191017)
SourcePackage: qtstyleplugins-src
UpgradeStatus: No upgrade log present (probably fresh install)

[Dmitry Shachnev (mitya57)]

Thank you for your report!

qt5-gtk2-platformtheme is deprecated and unmaintained (just like GTK2 itself), so uninstalling that package is the right solution.

I was going to remove that package from Ubuntu, but did not do it only because some users protested.

[Archisman Panigrahi (apandada1)]

This is also present in 20.04