I've been using macs for 9 years and never knew about option+click. Granted I've been using apps for window management since forever as the native tools suck or are almost hidden.
Just FYI, holding down modifiers to reveal additional functions is a common theme in macOS. In the Finder for example, try holding down option and shift while looking through menus for a few examples. Holding down option while clicking the close or minimize buttons in apps will also close or minimize all windows for that app.
2 years into being forced to use them for work and this is the first time I even hear anyone mention this. Thanks!, I'll be checking it out first thing in the morning