With us, the delays only piled up in the last month. Corona at the electrician delayed the sanitary installation. The painters were too slow... I would rather pay an extra month’s rent than have the pressure.
Especially interesting is how quickly the move-in date is used by the general contractor as leverage for a "small" acceptance. The motto being: "You want to move in this week, but of course that’s only possible if you confirm the acceptance here with correspondingly few defects. Otherwise, unfortunately, you’ll have to wait another 3 weeks."
If everything else regarding the profitable construction time is settled with the general contractor and only your move-in date is under pressure, that is really a nasty choice.