I was on the same boat 15 years ago. Still waiting solidowrks replacement on linux haha. All open source or free CAD is okayish, but they cant replace proper software like solidworks. Inventor, catia, proe, they are all decent, but solidworks became kinda industry standar, so better stick with it since you already have some experience (its easy to switch between them). Compatibility will stop you from using any other if you need to share files (not step or stl) with someone. Even different versions of SW (every few years) are not backward compatible. Solidworks is almost the only reason why I still have windows