[PeterZaitsev]

Yep. This "little addition" to the license will likely make it non Open Source according to standard definition. It reminds me "Commons Clause" which Redis tried to add to its license years ago... and later pulled back.

I understand OpenWebUI team pain and perhaps not everything they do, they should do as Open Source

In my opinion you should think about Open Source as fundamental science - if you discover Gravity, people are going to use it and often not giving you any credit.