Mouse doesn't stay locked to window when alt tabbing (Linux)

[MasterJubei]

1. Gnome 46
2. Linux Mint 22.1
3. Kernel 6.11.0.17-generic
4. Radeon 6900xt

I am using X11

This does not seem to affect Proton games, those lock the mouse even after alt tabbing.
However with Dota 2, if I press the Windows key, I can sucessfully select other applications and go back to the window most of the time without issue.

However when alt tabbing and right clicking on a panel behind the window, the mouse does not successfully relock to the window.

Once this occurs, the only way to relock the mouse is to restart the game.
Toggling dota_mouse_window_lock does not do anything.

[slouken]

Is this in a multi-monitor configuration?

[slouken]

I just did a fresh install of Linux Mint 22.1 Cinnamon and set up two monitors, and the behavior I'm seeing is that once I'm in a game, the Windows key does not let me select other applications, and Alt-Tab will minimize the game, but once I click on it in the task bar it comes back up and the mouse is locked to the window.

Did I miss a step in the repro case?