not good!
in all likelihood the best vaccines do for this strain is slightly reduce severity. You should still get a booster, since it could be the difference between a severe case and a deadly case, but it won’t stop you from getting sick as fuck
To back you up, I am fully vaxxed and got over it in about a week. It sucks shit and I lost my sense of smell, but it wasn’t that bad compared to what friends of mine experienced last year before the vaccine.
It’s also incredibly contagious, like 7 people who were vaccinated all got it and everyone in my household got it.