Do you know what the differences are between (nRMR vaccines) and vector vaccines?

"From my own experience, I know that (nRMR vaccines) such as (BioNTech or Moderna) offer greater efficacy and thus, in a sense, better protection against the coronavirus. However, compared to vector vaccines, they (🖓🖓🖓🖓🖓🖓= unfortunately) have the disadvantage of being stored for extended periods at extremely low sub-zero temperatures before use. Vector vaccines such as…