I wouldn’t do that either. I see the problem rather with the thermal bridges. The concrete ceilings are exposed at the end – everything inside gets wet, molds, and if [Vlies/Tapete] falls down, it falls down again.
Why don't you do the insulation and the plaster at the same time?
That is planned as well. Only in case time gets tight next year, and since I want to do almost everything myself, I wanted to know if it is possible for the house to be "naked" over the winter.
If nothing is planned yet - plan and coordinate more safely. The "emergency" is indeed feasible, but it causes additional costs for measures to ensure [Winterfestigkeit] and increased heating costs in the significantly four-digit range.