New Covid variant named Mu

[Kimo1967]

... which is why we have the more ambiguous terms "may", "uncertain" rather than the wording that the OP chose to use!

Yes.  Exactly.
Here are a few other VOI's which have been identified but have not yet caused worldwide impact (below).  Ever heard of them, other than lambda?

There are four other VOIs being watched by the WHO – eta, iota, kappa and lambda – but none of these have been reclassified as a VOC. That might be the case with mu as well, but we have to await further data.
https://scitechdaily.com/covid-mu-everyt...s-variant/

It's all Greek to me