Zoom in via ctrl+=, the scrollable area is not displayed completely

os: ubuntu 24
source git version: v2026.19


<img width="465" height="608" alt="Image" src="https://github.com/user-attachments/assets/cf3ef5b9-194c-4b3c-905e-9792f70ed71e" />

https://github.com/user-attachments/assets/a1d041a8-c42d-4394-b9a1-d5067f07249c