Thunar stays in front but is click through after drag and drop

[Milchreismann]

Brief summary

In a qube, after dragging & dropping a file from the Thunar file explorer into the file explorer in VSCodium, the Thunar window stays on top, but becomes non-interactive, as clicking anywhere in the Thunar window registers in the VSCodium window below.

Steps to reproduce (in a qube)

1. Install VSCodium
2. Start VSCodium and open a directory in it
3. Open a Thunar window and create a file
4. Drag and drop the file from Thunar into the explorer part (on the left) in VSCodium (to copy it into the opened directory)

Actual behavior

The Thunar window now stays on top, but the clicks register in VSCodium.

Expected behavior

Either the Thunar window should not stay on top, or it should be clickable.

Qubes OS release

dom0:

• OS Name: Qubes OS 4.2.2 (R4.2)
• Xfce Version: 4.16

Affected Qube:

• OS Name: Fedora Linux 40 (Forty)
• Xfce Version: 4.18
• GTK Version: 3.24.43
• Thunar Version: 4.18.11
• VSCodium Version: 1.90.1

Related issues

I found some focus related PRs like QubesOS/qubes-gui-agent-linux#154 or QubesOS/qubes-gui-agent-linux#169, so maybe the issue is known already, but their descriptions This resolves most focus-related issues and No description provided are not very informative.

[andrewdavidwong]

Possibly related: #1455, #3267