Something is wrong with spectator free cam, the one for dead players.
Seems like it tries to keep distance from walls, but it's bugged. It's possible to look inside brushes on roofs, vertical angle is limited (can't look straight down), and the forced distance doesn't work well in tight corridors.
Also when spectating last teammate and he dies:
1 the camera changes from that player pov to his death cam
2 it changes to free cam for a second
3 changes to round countdown self-cam.
#2 - is unnecessary and confusing.