No-one in these spaces was using Fusion/360 to begin with. Aero and defense are mostly CATIA 5 and Pro/ENGINEER (Creo), with offline PDM.
I'm sure that's not 100% feature-equivalent to the latest Autodesk Fusion, but at least you can run it locally without getting raked over the coals by the software company.
[1] https://appdb.winehq.org/objectManager.php?sClass=applicatio...