"English" dowel
If you encounter walls in which the other tips do not help:
hammer a solid wood chip into the hole. Since the wall is always soft, a large chip can also easily be hammered in.
Then just screw in the screw, and just trust the spreading and clamping effect of the wood.
Works fine and was made in this way in every house around the turn of the century. As we know, the frames and furniture were much heavier ...
