At the end of the day, both are quick cars, both are capable of being tuned.
Its not like you got a completely different engine for 2021, just a refresh. Both motors will be very capable.
No need to doubt it, it is documented by Toyota/Lexus
https://www.cbc.ca/news/canada/ottawa/toyota-lexus-relay-attack-1.5380947
https://www.autotrader.ca/newsfeatures/20191203/tech-savvy-thieves-targeting-toyota-and-lexus-vehicles-in-canada/
I know some key fob signals are easier than they should be to intercept, Bought a 2020 4runner this year with the smart key to find out the next day tons of 4runners get stolen by using a key fob repeater. Solution is to keep the keyfob in one of those bags that blocks the signal, maybe the same...