610k is the accumulated total unique listeners over time since release, love 119 have been out for almost 20 days longer and charted for longer in top 10, so it will have more. Currently its at 1,1m total uls.
Comparing with days from respective release (23 days):
Plot twist / Love 119
Total unique listeners
610k/737k
Streams
6,3m/9,8m
Plot twist have gained about 120k uls and 1,3m streams in the last four days. Love 119 have gained 1,2m streams.
Streaming numbers are unfiltered.