This might not be exactly what you want, but if you search "corner protector" and "edge protector" you will find various options like these:
Wall Protex U4100SS Universal Adhesive Corner Guard
https://www.amazon.com/dp/B003KII7J0..._l8yTwbBPNRM6X
Lexan Corner Guard 434 SS Clear
https://www.amazon.com/dp/B002MFUACO..._l9yTwbCP9NRWB
Also search "window sill protector" and probably "door protector" too for more stuff like this:
PoochieGuard Invisible Lightweight Protective Clear Film for Your Home's Doors, Windows and More; Protect Your Home From Eager Paws & Claws.
https://www.amazon.com/dp/B00VUR8PCM..._j-yTwbVJPMDF8
Many of these things are self-adhesive - just cut to size and stick on. They aren't the most elegant necessarily, but a darn spot nicer than a dog scratched door or window. *been there!*
Land of 10,000 Lakes
2016 Forester MBS 2401R