Occasional Visitor

We are in the process of upgrading our SharePoint On-Premise 2013 farm to SharePoint On-Premise 2019. In the 2013 farm we are using PowerPivot and SSRS integrated mode. It's my understanding in 2019 its recommended to use Power BI but is it still possible to use powerpivot and SSRS integrated in 2019? If not what is involved in migrating from SharePoint 2013 PowerPivot/SSRS to Power BI?