If no monitors are selected while proceeding with the option "Full screen on selected monitor(s)" followed up by windowed mode through the F8 menu, the window becomes a tiny sliver of zero width somewhere on the screen, very difficult to spot if you don't know what to look for.
Observed this bug on Fedora37, MacOS13.1, and Windows10, for all combinations of
dev build #2976
dev build #2881
The servers were installed on Fedora37.