CAD machines are some of the few in our company that are staying windows instead of going to Linux. We're an autodesk shop, I tested fusion under Debian 6 months ago and it didn't work very well. I tried proton and wine, couldn't get either to work great and had issues. It would launch, but opening a medium complexity assembly was laggy, and the CAM module would crash fairly often. I can't speak for other programs from personal experience though.
That said, for home use freecad has gotten a lot better after the ondsel changes were merged, I was using the free liscence of fusion360 for personal projects, and moved over to freecad 6 months ago. I'd originally tried it 7 or 8 years ago, and it was just absolutely awful to use, but modern versions are really very good. There wasn't a huge learning curve, and I haven't run into anything that the program can't do. For hobby CAD, I'm using it for 3d printing, a Cnc mill, and making prints for manual machining. Honestly, I've been less frustrated with freecad than fusion360, it does a better job of getting out of my way and letting me design things. That said, I'm a software dev and IT guy, I don't know if it would work for commercial use. I certainly didn't push for the engineers to change, but their workstations are already running win11 that I had to debloat.
That said, for home use freecad has gotten a lot better after the ondsel changes were merged, I was using the free liscence of fusion360 for personal projects, and moved over to freecad 6 months ago. I'd originally tried it 7 or 8 years ago, and it was just absolutely awful to use, but modern versions are really very good. There wasn't a huge learning curve, and I haven't run into anything that the program can't do. For hobby CAD, I'm using it for 3d printing, a Cnc mill, and making prints for manual machining. Honestly, I've been less frustrated with freecad than fusion360, it does a better job of getting out of my way and letting me design things. That said, I'm a software dev and IT guy, I don't know if it would work for commercial use. I certainly didn't push for the engineers to change, but their workstations are already running win11 that I had to debloat.