Oh, it certainly has infuriating quirks. Like, if you copy a cell from here and you plan to paste it into 15 different places here and there. Somewhere along the way, you’ll accidentally add some text to another cell, and you lose the content of the clipboard. You need to copy that thing a second time in order to keep on pasting in the remaining places. Like, why is this a feature? Editing one cell suddenly kicks out whatever you had copied earlier? Why?
Fortunately, Calc still has a sensible clipboard that actually remembers what you put there.