I’ve just built a kitchen that was 100% modelled in Sketchup 2017 - the free forever (AAUI?) version still available in a few places. The Mac version I use occasionally crashes, but otherwise it’s perfectly usable.
Until you upgrade to a new Mac which doesn't have the Intel chip which that version is compiled for and which lacks Rosetta.
Until you upgrade to a new Mac which doesn't have the Intel chip which that version is compiled for and which lacks Rosetta.