We are in the process of migrating SharePoint 2013 on premises to SharePoint 2019 on premises . We have internet enabled Publishing sites heavily customized using custom Master Pages and Page Layouts.
We have full trust farm solutions with custom visual web parts and we are in planning to convert all these Visual Web Parts into SPFX Web Parts to get support in Modern Pages, Its been suggested to convert the SharePoint 2013 Publishing sites into SharePoint 2019 Communication sites to get the similar features with modern support.
What will be the process of converting all those custom Master Pages and Page Layouts to support with Modern Communication sites.
Is there a way to convert them and use it in a different format to support in Modern Communication site.
How we can achieve this , or what are all the other alternatives to Master Pages and Page Layouts to achieve same custom branding in SharePoint 2019 Communication site.
Kindly share your ideas and guidance on this.