I'm having minimal area DRC problems with VIAS that contain metals islands. Is there any way to make OR correct that?

Did you manage to fix this?

I ran the flow with the openroad version contained in the i2c-gpioexpander project, it got automatically fixed by the openroad

Perfect! I'm having the same issue. Please send me a link from the project. Thanks!

This one: https://github.com/aesc-silicon/i2c-gpio-expander/tree/main