Is there a difference between קפטן and קברניט?
No, I think they both originate from foreign languages.
The actual Hebrew word is "רב חובל" if we are talking about a ship's captain
Is the pronunciation correct ?
(can't quite tell if this is voice recording or generated speech). The dictionary appears to suggest a hard ב (dagesh)
Well, קַבַּרְנִיט is the more correct pronunciation, but for this old Greek loanword the pronunciation קְבַרְנִיט with a soft בֿ is also widespread.
I hope his boat is ok!
Pealim says kabarnit but the speaker says kvarnit.
Kavarnit sounds feminine but you know it’s masculine because of the masculine verb.
Well, it sounds feminine, but because it is, being a Greek loan, written ־ִט, not with the feminine suffix ־ִית, it does not look it.
”אוי לו לעולם שאבד מנהיגו ואוי לה לספינה שאבד קברניטה (בבא בתרא צא.)"