I think Cybertronians who have been around the galaxy a bit can recognize what planet someone’s been to based on their alt mode and kibble.
Like they’ll see the style of someone fenders or blades and go “Ah, how are the Vok doing lately?”, or “Don’t you think Earth creatures have the best rotor craft?”
I think once Cybertronians start returning to the planet, there will be a lot of different styles, and some will be really exotic, from planets not many people made it to, while others will be staples. Once the space bridges get up and running and Cybertronians get out into the universe again, some people might import stylish alien vehicles to scan. Big cities might have boutiques where you can browse all sorts of beautiful machines from all over the universe and adapt your appearance.
Cybertronian Database 