Is Steam Mover still supported with current Steam?
Yes. Steammover uses basic OS functions to do what it does, it doesn't matter what version Steam is.
It doesn't even require Steam. It can create junctions for anything, you just have to choose the source and destination folders. I've used it with Origin and Uplay, even for games that have their own installer, with nothing going haywire. Of course, now that I've said that, nothing will work when I get home.
London-SV on Throttle Control in Gran Turismo 6 ~ ''Unless you're flooring it at every opportunity... Try to be a little more genital on the accelerator''