Uber is being killed by Bolt in many European cities, it seems.
Bolt subsidizes rides with up to 40% promos all the time during weekdays. I just opened the app now (I'm in Berlin) and I have a 30% promo.
I.e. they are so much cheaper than Uber that you have no sane choice.
And on weekends you then choose Bolt out of habit.
Also drivers seem to prefer Bolt, from the few conversations I had.