Edge is Cinnamon with a newer kernel. So, since you like XFce, try install the XFce version of Mint, and see if it works with your system. If it mostly works and boots, but not completely, you can always install the newer kernel found on Edge using the Update app (there’s a menu option to install newer kernels after installation). But if it doesn’t install/boot, but you’re confident that Linux should support your laptop, then consider the Edge version with Cinnamon.
Personally, I prefer LocalSend to KDEConnect.