I used the update function of the Gamemode on my Deck image, and it seems to not detect the OS update chunks. I then went to Desktop Mode and updated normally using the update shortcut. After restarting, I am now on the latest version.
I think we should add a GIF showing a user how a Gamemode primary image is supposed to update through the Steam update interface on the FAQ wiki of bazzite. I am not a novice Linux user, and even I got a little confused about whether it was working correctly or not (I thought just pressing “Check for Updates” ran the update script in the background, with no feedback to the user).