I currently find the way to joplin (v.2.8.8) and I try to size the "dialogs(?)" to fit it into my 2 monitors. I don't have any problems with the app size itself. It's actually more the kanban plugin which needs to be moved more into the middle of the screens.
I can change the size, but it does not stay that way. I can't find anything under options to keep it that way. Is there any way to do that?