Description:
In latest openSUSE Tumbleweed(2023/04/24 or maybe some earlier snapshots), I use plasma desktop on X11. I installed libreoffice 7.5.22 with qt5 frontend(vcl kf5), and fcitx5 with qt5 frontend support.

But When I type chinese characters in libreoffice programs, the candidate list(a popup expected to move as the cursor moves and stay very close to the cursor) does not show in the right position. It follows the cursor, but not close enought to the cursor.

In other softwares like firefox (with gtk3 interface) and other softwares with qt5 interface(like konsole, kate), the popup is shown in the right position.

I also tried remove libreoffice-qt5 and install libreoffice-gtk3, then the popup position is also right.

Steps to Reproduce:
1. Install libreoffice on a recent release of rolling distribution of linux( openSUSE Tumbleweed or arch linux for example);
2. Install libreoffice qt5 interface;
3. Install fcitx5 with qt5 support and install some chinese input method(so as to show the popup while typing);
4. Use plasmashell on X11(maybe this is not necessary to be plasma or X11);
5. open a new libreoffice writer(other components can also reproduce) and type in chinese.

Actual Results:
popup show in a position that follow the cursor and but not right below the cursor, but roughly a line under the cursor.u

Expected Results:
popup show in a position that follow the cursor and right below the cursor.


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 7.5.2.2 (X86_64) / LibreOffice Community
Build ID: 50(Build:2)
CPU threads: 4; OS: Linux 6.2; UI render: default; VCL: kf5 (cairo+xcb)
Locale: zh-CN (zh_CN.UTF-8); UI: zh-CN
Calc: threaded