Yes, but this isn't totally new. Spacex has been landing falcon 9 boosters RTLS for nearly a decade.

Don't get me wrong, it's incredible. It's a huge step, but for spacex it is also a baby step. With starship they have effectively eliminated the landing legs vs f9 and eliminated the need to put the booster back on its launch mounts. Rapid reusability. The booster can be fully fuelled in 40 minutes and there can be another starship waiting to be stacked by the chopsticks, so theoretically they will be able to launch 200T to LEO every hour or two (per launch tower) with the same reliability and safety as a modern airliner (not Boeing, though)