Businesses that ask for donations don't have a long and happy life :)
What you could do instead is donate to the FreeCAD Project Association. Part of the money goes into the development fund, that is, grants for developers.
Why donations? Supporter plan, without any additional benefits or fictional ones and with a tiny price will do.
As for the FreeCAD Project Association, thanks for the tip, that's already included. I prefer to spread the butter all over the bread I'm eating, if I can say it that way.
What you could do instead is donate to the FreeCAD Project Association. Part of the money goes into the development fund, that is, grants for developers.