Koodo 4G vs Public 5G coverage

Public Mobile offers 5G whereas Koodo is 4G. I read that coverage may not be as good with Public because not everywhere in NB has 5G coverage. Since I travel for work, I would need the same coverage Koodo provides me with 4G.

In NB, is there any issue with 5G versus 4G?

(I only use my phone for calls, texts, and web searches, so not much data.)

Public has a much better rate over my current provider, Koodo, for my needs, so I'm thinking of switching.