Just a note, adding an "e" at the end of "bug" when pronouncing is not a think in Portuguese from Portugal, I mostly hear it from our good friends from Brazil, and they've actually started dropping the "e" (at least the ones I work with).

It depends far more on the actual dialect than the country, as it's phonotactics-dependent; for example I'd still expect Alentejano dialect to add a short [ɪ], or Mineiro to skip it, even if it's the opposite direction of the "trend".

And the vowel itself might vary quite a bit. I use [e] due to my dialect (Sulista) still keeping the post-stress final /e/ vs. /i/ distinction (e.g. "SETI" and "sete" sound different for us), but [ɪ] and [i] are likely more common for people who merged both.