You don’t necessarily have to accept that. Go through with BL, complain, set a retention and only pay everything when it’s finished.
Some things, however, e.g. the defects at sockets/light switches, are painting work. Did you buy with the painter? The painter fills walls and removes the switches to do so and also fills in overly large cutouts right away. At door frames, he makes an acrylic joint, which will fail here due to the gap size.
What your pictures show is typical boom-time botch work. Extreme time pressure causes the journeyman to have an “whatever, it has to be finished” mindset. Then the carpenter comes and is supposed to install doors and notices that the door opening is too large. Normally, he would have to report this to his boss and the boss should say: okay, I’ll inform the architect or BL, we won’t do this until the frame is reworked. But he didn’t. He said, you somehow fiddle it in, figure something out, this thing has to be finished, next week I’ve already scheduled you in Neumüster.