Need to update my GPS maps. Is there a SD Card for this?

2020 Prius Prime Limited. I am visiting Bend, OR and I have found that there are streets missing in the original GPS maps. When I enter the street name, system lacks the correct letters, so I am guessing the street name is not in the database. This is a new housing subdivision, so it would make sense. I see on YouTube folks updating the GPS micro SD card on Primes older than mine. My car has the 11 inch screen. Is there a similar way to do this on my car? Also is there a recommended source for the card if that is the correct update route? Would prefer the Toyota part and doing it myself, as I do not have any confidence that the dealership would do anything but overcharge me.

Thanks in advance for everyone's suggestions.