Hi bunqers π
Thank you for being so patient with us! Please note that we did some changes and small optimisations which should help at least a bit.
Something else we also found while testing is that Samsung phones will register the app (not only the bunq app but any) which was open during the locking of the phone (if left open) as being active in the background while they are actually doing nothing. Battery stats are also sometimes incorrect so the phone's batter would be draining significantly if you leave any app open in the background. This is why we suggest just closing the app before locking your phone to prevent this from happening.
As for any background processes which we use while "being active in the background" we tested this with a proxy and got nothing. And non of the possible background processes like travel assistant did actually do anything in that time. Still the test device says it is active and using battery. This also explains why for all of you who tried to limit the backgrounds app activity this didn't work just because there is none.
Overall, if you close the app(not kill it) before locking your phones this should help bring the consumption down. Given the fact that basically every app does this while we made the tests we consider that the bunq app actually does nothing different than all the other apps. Hence, I'll lock the discussion for now.
I hope that the workaround and the optimisations we made solve the issue for you π€