It has been available on Mac OS since 1989 and there is a browser-based version that is freely usable with a Microsoft account. I think you should check your facts.
Yes. Neither is the Linux-compatable version I need/want. I use spreadsheets for sensitive information. Something reliant on browsers, with all their headaches, doesn't fit my security model nor that of my clients.
That's not what you were complaining about earlier. Shifting the goalposts is always fun.