People who had received boosters had roughly the same risk of hospitalization or death as the unvaccinated.
This appears to imply that vaccinated people should get boosters in order to lower their risk from being vaccinated (only).
Friend in his early 70s, big believer in vax, had a heart-attack about 2 months after his first mRNA booster. Doctor is suggesting its time for he and his wife get a 2nd booster. Suddenly he isn’t so sure. He was lucky to survive it.