Other investors have been saying that SoftBank has been overpaying for years. It looks like they were right and you need to discount any SoftBank valuation by about 50%.
The SoftBank playbook has an even bigger negative impact on employees. They are granted options at an inflated price. When the stock collapses (Uber, WeWork, Wag) they lose more than others because most of the comp is in equity.
As an employee, I would stay far away from any SoftBank funded company.