SharePoint 2019 and SSRS

Hi All, 

I know SSRS SharePoint integrated mode is not supported with SharePoint 2019 anymore. I have a situation where SharePoint was migrated from 2016 to 2019 using the database attach method. They had SSRS reports in a document library. While the reports are still working in 2019 and usable, we are no longer able to update any subscriptions. So we need to know 2 things:

1. is there a way to find the subscriptions so we can document them?

2. is there a way to easily migrate these RDL files out of SharePoint and into SSRS?