Tilix ignores terminal size settings on Wayland with GTK 3.24.43

[fenekosan]

When running Tilix on Wayland with GTK 3.24.43 (shipped with Gnome 47 on Ubuntu 24.10 and Fedora 41), the emulator does not respect the terminal size set in the profile or via the --geometry option. Instead, it launches with the default size.

Testing on an older version of GTK (3.24.41) via Flatpak resolves this issue on Gnome 47, indicating a possible regression or compatibility problem with the newer GTK version. Also env GDK_BACKEND=x11 solves the problem.

Steps to Reproduce:
1. Set a custom terminal size in the Tilix profile (120 cols, 36 rows) or use the geometry option like --geometry 120x36
2. Launch Tilix on a Wayland session
3. Observe that Tilix opens with the default size instead of the specified dimensions.

[josederas]

I can confirm same issue, running Gnome 47 on Ubuntu 24.10 as well.