Bank asset valuation: low assessment

Hello, yesterday the financing approval from L-Bank arrived. In the 200 pages, the property appraisal of our new apartment was mentioned. The bank valued it €100,000 lower. Does that somehow have disadvantages for us? An excerpt from the land register entry is not yet available, but I doubt that is the reason. The apartment is still under construction. Maybe I am unnecessarily worried now.

If it costs € 2 million, I find the deviation too low. If it costs € 300 thousand, then clearly too much. Then please also distinguish between mortgage lending value and market value. Which one is the bank referring to?

Mortgage lending value or market value? In any case, a) the purchase price is much too high or b) the bank is stupid I suspect the latter.