A modal share of about 70% into central Helsinki doesn't seem so bad: https://www.hsl.fi/hsl/tutkimukset/liikennelaskennat#joukkoliikenteen-osuus
That compares favourably with inner London's sustainable/public transport mode share, which can be seen here: https://www.healthystreetsscorecard.london/results_2024/results_outcome_indicators_2024/