KDE Connect should fit the bill; despite the name, you don’t need to be using KDE (or Linux even) since there are clients for every major OS, even mobile.
Among many other cool features, it lets you easily and simply just send a file from one device directly to another on your local network. I use it all the time to send photos from my phone to my desktop without plugging anything in, for example.
I’ve been thinking about this often lately as well. These fucking corporations with multiple billions at their disposal, and all they can produce is shit like Windows or macOS? AND it also costs money to use? AND it has ads in it?
Meanwhile a bunch of nerds working for free on a passion project are giving away software that is faster and easier to use and often more beautiful to look at.
I guess I’ve simply reiterated what the post image said, so ignore me maybe, but fuck this is depressing and disappointing. All these corporate resources and all they can do is barely achieve what other people do for free in their spare time? What a fucking waste of human life and energy is capitalism.