The antiquated save icon should probably go away now. Younger people may not even know what that picture is supposed to be. In case you don’t know, it’s a floppy disk. They were plastic squares the size of your palm that held a pitiful amount of data. You could fit thousands of them on a USB stick. They failed all the time and I don’t even install them in my PCs anymore. I’m not sure what tiny, obvious picture should replace it. Hard drive pictures are generally kinda technical and mysterious looking, so they don’t obviously mean “save”. Funny how things you assume to be obvious are actually pretty antiquated. I thought this one was obvious until I saw that someone on the internet was asking the question.