Instead of separate dedicated shape tools, in gimp you use the appropriate shape of Selection tool to create the shape(s), then you either add the fill and/or border of the style you want, or use ‘Stroke selection’ to choose from various draw/paint tools/styles. So for a circle you use the Ellipse Selection tool.
You can use any of the transformation tools, including Rotate, on the selection vs the image contents --you choose the tool option for which thing you want it to apply to. You can drag or enter a specific number.
(this is just information for anyone who wants to know how to do the things you mentioned. I’m not interested in talking about how good or shitty the programs are or comparing them)
Try KDEConnect (or GSConnect for gnome). Clients for Linux, BSD, Android, Sailfish, iOS, macOS and Windows.
Another option (maybe better, depending on your distro) is Warpinator. Linux, Windows, and Android.