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.
Yeah! How dare people object to the symbols of their ideology being coopted by the very forces their ideology opposes. Do you hear yourself? 🙄