This is a continuation of an issue that I was already having in 2017. Mentioned in a couple of threads by me and others previously without much response.   Essentially: the push pull tool (a) struggles to select faces, (b) fails completely to select faces, or (c) causes a freeze with spinning beachball when there are moderately complex objects in the drawing.   As far as I can work out, it happens as soon as one of those objects is behind whatever face you are trying to selec