> I can and do use all those FOSS tools just fine both as a hobbyist and professionally, my needs are meet.

Mine aren't: GIMP is okay, FreeCAD is a complete joke. It is painfully obvious that their development is done primarily by F/LOSS enthusiasts rather than by industry professionals and UX designers. They are closer to being a random collection of features than a professional workhorse. You might eventually get the job done, but compared to the proprietary competition it is woefully incomplete, overly complicated, and significantly buggier.

The poor quality of FreeCAD is the main reason my 3D printer is collecting dust. As a Linux-only user the proprietary alternatives mostly aren't available to me, and FreeCAD is bad enough that I'd rather not do CAD at all. The Ondsel fork was looking promising for a while, but sadly that died off.

Maybe try OnShape, which is browser based and quite professional?