Comment 4 for bug 1934388

Hello Georges,

I tried to replicate this problem by installing Lifeograph on a virtual Linux Mint system (to get Cinnamon). For some reason I failed to install the dependencies to build from source and I resorted to Flatpak. Nevertheless, the close button was present in the preferences dialog despite the fact that Cinnamon was being used.

So, it looks more like a special issue related to your setup rather than a general Cinnamon problem.