On my Linhof Technikardan S 4x5 I own & use 72mm, 75mm, 150mm, 300mm.

My most used lens is probably the 150mm, followed by 75/72mm. Although I like long focal lengths, I hardly shoot with my 300mm lens. The reason may be its heavy weight, big size, or simply that I usually pick the lens needed to frame the subject. I also shoot more wide angle as I tend to shoot more architecture & cityscapes.

My next purchase will be a 47mm and a 150mm lens (to replace my old one). I'll sell my 75mm, too. The 72mm is a recent purchase