If you've got the space though, another Keto unit would give you easy disconnection and consistency. And I'd be going up to at least 10mm or even 16mm cable for the Victron output.
Then you have the issue of the max current going into the Pylontech battery stack, from both the Goodwe and Victron as the 25mm cables on the Pylontechs get pretty warm over 100A and hot at about 120A.