The vaccines protected you from the original COVID strain very well; especially if you got Moderna or Biotech/Pfizer, but as soon as COVID mutated, the vaccines became less effective and it took some time to create a new adapted vaccines. By the time they came out new COVID mutations dominated, making the vaccines less effective once again.
That's not true America is Texas, Florida (if it involves alligators or trans-hatred), California, Las Vegas and New York. Everything else is irrelevant.
It's just a progressive web app, so Meta might as well port it to Linux