Using neo layout `Mod4` key closes auto-complete menu

Environment

• TeXstudio: 3.0.4
• Qt: 5.15.2
• OS: Debian 11 Bullseye
• TeX distribution: texlive

The neo layout has a 4th layer that allows access to navigation commands (Up/Down/Enter etc.) on the keyboard without having to move your hands. This layer is accessed by holding down one of the additionally introduced modifier keys (Mod4) located on QWERTZ < and AltGr (right Alt) positions and pressing the corresponding second key (e.g. QWERTZ D for Down).

Expected behavior

Using neo layout's 4th layer should work for navigating through the auto-complete menu.

Actual behavior

Trying to do so (i.e. pressing Mod4 key) closes the menu. Navigating through the tex file using the 4th layer works without problems for all navigation commands.

Other applications (e.g. pycharm) have an option to use national layouts for shortcuts which solved similar problems there. I checked and the Mod4 key is not interpreted as an Alt key any more so I do not expect disabling associated shortcuts to help with this.

How to reproduce

• choose the German Neo2 layout in your system settings
• open TeXStudio
• start typing a command
• press/hold Mod4 key located on QWERTZ < and AltGr (right Alt)