2h 30 min layover in oslo from bergen

Very likely if you can check baggage through on one ticket.

Agree. Both the Oslo and Bergen airports are quite small.

No problem assuming it is all on 1 ticket. Oslo is very easy to navigate.

Plenty of time. But keep checking the departure board for your correct gate. While sitting at the original gate, ours got changed, without any announcement, and we had to scramble to get to the changed gate.

Thanks all!