http://status.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/closedsource/index.html
By that standard, you can already discard software like Windows, Discord, Whatsapp, Instagram, iOS, pre-installed phone host OSes, Word, Excel, etc, as none of them are open source, and you can be damn sure that they are spying on everything you do, wilfully or not.