I use LibreOffice Calc a couple of times a year for personal use. At work I have to use Excel. I donate a small sum to The Document Foundation (which develops a

I use LibreOffice Calc a couple of times a year for personal use. At work I have to use Excel. I donate a small sum to The Document Foundation (which develops and publishes LibreOffice) every year. I have a few longstanding disagreements with the state of the application and its development approach over the years. The first is that the application loads slowly, but that's not quite as bad as the other gripes I have. The UI is quite ugly with poor fonts, cluttered (and ugly) menubar icons, not a well designed layout, etc. (on Windows and macOS). The fact that Calc uses keyboard shortcuts that aren't anywhere close to what Excel uses (even the Excel/Office 2003 version that's before the Ribbon Menu days) makes using Excel knowledge and Excel muscle memory for keyboard shortcuts quite useless when switching to Calc. For years, I've encountered some strange copy paste bugs in Calc where it doesn't seem to get the clipboard contents from the OS. If these were resolved, I'd be very thrilled to recommend it to others.