I use osmand on my phone for route finding and etc. It would be great to have the same program on my desktop, but its only for phones. For desktop, I haven’t found anything that quite satisfies. It seems like programs are oriented toward different goals like editing GPS tracks. I’m mainly interested in google maps ish functionality with route finding and map browsing, like osmand.
There’s also GNOME Maps if you enjoy the GNOME look and feel (which I do):