Yes it worked fine for me sending money back and forth between Fire and Revolut via SEPA. It took 2 hours.
Mind you that Fire processes Euro transfers twice a day, at 9am and 1.30pm, so transfers after 1.30pm will probably be queued for the next day.
Fire debit card however did not work when I tried to use it to top up my Revolut by card. It said merchant not supported. So it’s strange that they support SEPA to Fire but not debit card top ups.