Fractional Ownership in Real Estate?

What do you guys think about Fractional Ownership investment in real estate, particularly in Hong Kong?

https://www.pacaso.com (Softbank and venture investors pouring in more than 1.5 billion U.S. dollars)

https://www.kocomo.com (founded in August 21, raised more than 56 million US dollars)

https://www.arrivedhomes.com (Private investment of Jeff Bezos and Dara Khosrowshahi)

https://www.pieceproperty.com (local in Hong Kong, website has 1 high yield London commercial shop for investment)

The concepts appear to be largely the same, and they all seem to be soliciting turning property rights into a fixed income product.

Can Fractional Ownership be used as an investment option for professional investors or may be those who are still struggling with their downpayment??