Yea it would be a pretty radical change, requiring adjustments in many areas. But I do think it’s necessary, because people not being personally invested in the things they own (just financially) and profiting from other people’s work is imo the big problem with our society right now.
Companies would work the same way. You can own it (make decisions and get profits) as long as you work there. Ofc you can work for multiple companies, but with reasonably restrictions (e.g. 8 companies if you work 40h/week and 5h/week/company). I also think companies should not be able to own other companies, because companies cannot be “personally” involved in anything, only people can.